ライフサイエンスコーパス: quasiparticle

1 lian anyons, a highly desired type of exotic quasiparticle.

2 r, known as an exciton, which is yet another quasiparticle.

3 quency, each dominated by different types of quasiparticles.

4 r if they coexist with conventional, massive quasiparticles.

5 l materials can host low-energy relativistic quasiparticles.

6 C theory regarding the recombination rate of quasiparticles.

7 matter that hosts Weyl fermions as emergent quasiparticles.

8 spatiotemporal map of the diffusion of these quasiparticles.

9 omistic electronic structure of the magnetic quasiparticles.

10 strongly coupled systems without long-lived quasiparticles.

11 he thermally induced motion of particles and quasiparticles.

12 ring state allows for the existence of nodal quasiparticles.

13 ed system reaching beyond the regime of free quasiparticles.

14 Exciton-polaritons are mixed light-matter quasiparticles.

15 d structure features three-dimensional Dirac quasiparticles.

16 annels involving electron-like and hole-like quasiparticles.

17 al single-electron-like excitations known as quasiparticles.

18 ity originating from the condense of anyonic quasiparticles.

19 ual electrons in graphene behave as massless quasiparticles.

20 order and the emerging of the fractionalized quasiparticles.

21 eory confirm the presence of plasmonic meron quasiparticles.

22 improving screening of interactions between quasiparticles.

23 th the presence of long-lived spin-polarized quasiparticles.

24 dau's Fermi liquid theory of non-interacting quasiparticles.

25 oscopic parameters, rather than well-defined quasiparticles.

26 rmi surface reconstruction, and conventional quasiparticles.

27 , by implication, in other systems with Bose quasiparticles.

28 d in different systems of real particles and quasiparticles.

29 perature, the impurities formed well-defined quasiparticles.

30 nstructs into a more conventional metal with quasiparticles.

31 in spin ice systems or the emergence of new quasiparticles.

32 operties are understood using the concept of quasiparticles.

33 nanocomposite heterostructure with magnetic quasiparticles (0) embedded in a ferroelectric film matr

34 spatially-extended pairs of fractional S=1/2 quasiparticles, 2D analogues of 1D spinons.

35 ological charge(8) resembling magnetic meron quasiparticles(9).

36 the apparent breakdown of the concept of the quasiparticle, a cornerstone of existing theories of str

37 a major reduction in temperature, while for quasiparticles, a mechanism of external injection of bos

38 tudying many-body interactions of electronic quasiparticles among themselves and with lattice vibrati

39 a correlated phase with fractionally charged quasiparticles and a ground-state degeneracy that grows

40 matter that hosts Weyl fermions as emergent quasiparticles and admits a topological classification t

41 ch may be considered as Frenkel exciton-like quasiparticles and analyze the dependence of their densi

42 s to a k-space differentiation between nodal quasiparticles and antinodal excitations.

43 es the simplest phase supporting non-Abelian quasiparticles and can be seen as the blueprint of fract

44 a feasible experimental realization of Weyl quasiparticles and related phenomena in clean and contro

45 s collision experiments with various complex quasiparticles and suggests a promising new way of gener

46 oach to enable Bose-Einstein condensation of quasiparticles and to corroborate it experimentally by u

47 isms in controlling the dynamics of residual quasiparticle, and show quantized changes in quasipartic

48 dispersion behave as massless Weyl- or Dirac-quasiparticles, and continue to intrigue due to their cl

49 high-mobility electron pocket of double Weyl quasiparticles, and the temperature dependence of the sp

50 demand, enabling relativistic massless Dirac quasiparticles, and thus inducing low-loss transport eit

51 The structure and dynamics of quasiparticles are important because they define macrosc

52 degeneracy that grows exponentially as these quasiparticles are introduced.

53 However, typically these exotic quasiparticles are located far away from the Fermi level

54 hat neither well-defined electron nor phonon quasiparticles are present in this material.

55 In such Tomonaga-Luttinger liquids, quasiparticles are replaced by distinct collective excit

56 ectronic degrees of freedom, parity-breaking quasiparticles are revealed.

57 The most prominent examples of emergent quasiparticles are the ones with fractional electric cha

58 ation of polaritons - part-light part-matter quasiparticles, are highly advantageous since the requir

59 ge or may reflect multiple passes of the e/4 quasiparticle around the interferometer.

60 The Landau-Fermi liquid picture for quasiparticles assumes that charge carriers are dressed

61 Using a local electrometer to compare how quasiparticles at nu = 5/2 and nu = 7/3 charge these pud

62 Here we present observations of localized quasiparticles at nu = 5/2, confined to puddles by disor

63 ensional (1D) topological edge states, where quasiparticle backscattering is suppressed by time-rever

64 The quasiparticle band gaps of semiconducting carbon nanotub

65 ities between the Fermi surface topology and quasiparticle band structure of hole- and electron-doped

66 rst-principles calculations have predicted a quasiparticle bandgap much larger than the measured opti

67 inescence excitation spectroscopy suggests a quasiparticle bandgap of 2.2 eV, from which we estimate

68 proximately 0.7 electronvolts), leading to a quasiparticle bandgap of 2.7 electronvolts.

69 The transport of electrically charged quasiparticles (based on electrons or ions) plays a pivo

70 c trions could provide a platform to realize quasiparticle-based tunable optoelectronic applications

71 Unlike other quasiparticle BEC systems, this system has a spectrum wi

72 ntually approaching the temperature at which quasiparticles become identifiable at all.

73 Novel quasiparticles beyond those mimicking the elementary hig

74 hors unveil the existence of another type of quasiparticle, bielectron vortices, which are bosonic an

75 nce of a new type of energetically favorable quasiparticle: bielectron vortices, which are double-cha

76 Here we show, using neutron scattering, that quasiparticle breakdown can also occur in a quantum magn

77 of confined states in the ordered phase and quasiparticle breakdown in the polarized phase at high t

78 Such quasiparticle breakdown was first predicted for an exoti

79 larity, so that excited states are no longer quasiparticles but occupy a wide band of energy.

80 Strong scattering of phonon quasiparticles by anharmonicity and Ag disorder are the

81 or large systems, enabling fast and accurate quasiparticle calculations for complex materials systems

82 uctor microcavity chips using exciton-photon quasiparticles called polaritons.

83 odes are coupled, a hybridized magnon-phonon quasiparticle can form.

84 Oppositely charged electron and hole quasiparticles can coexist in an ionized but correlated

85 he thermally induced motion of particles and quasiparticles can in turn interact with electronic degr

86 ption: in some systems the very existence of quasiparticles cannot be taken for granted.

87 Like unstable elementary particles, quasiparticles cannot survive beyond a threshold where c

88 eity, and shed light on the relation between quasiparticle character and superfluid density.

89 tions from gapped (localized) to delocalized quasiparticles characterized by a longer lifetime.

90 nsmission through the device consistent with quasiparticle charge e/4 is observed at nu = 5/2 and at

91 ve e/2 period may empirically reflect an e/2 quasiparticle charge or may reflect multiple passes of t

92 ssibilities, we attribute to the partitioned quasiparticle charge.

93 of attosecond science, to explore ultrafast quasiparticle collisions directly in the time domain: a

94 optical bandstructure reconstruction8,9, and quasiparticle collisions10,11.

95 f a quantum critical point, the existence of quasiparticles comes under question.

96 ansistor of tightly bound negative trions, a quasiparticle composed of two electrons and a hole.

97 Instead, different quasiparticle configurations are stabilized dominantly b

98 Exciton-polaritons are quasiparticles consisting of a linear superposition of p

99 h the quasiparticle peak merges with the two-quasiparticle continuum.

100 that scale inversely with width, supporting quasiparticle corrections to the calculated gap.

101 ring their energy landscape through monopole quasiparticle creation, potentially leading to ASI magne

102 A 70% reduction in the quasiparticle density results in a threefold enhancement

103 t of ionizing radiation leads to an elevated quasiparticle density, which we predict would ultimately

104 t infrared photons considerably increase the quasiparticle density, yet even in the best-isolated sys

105 Recently, magnons, which are quasiparticles describing the collective motion of spins

106 solated conducting chains, the Fermi-liquid (quasiparticle) description appropriate for higher dimens

107 tion of this quantum coherent suppression of quasiparticle dissipation across a Josephson junction.

108 Josephson's key theoretical prediction that quasiparticle dissipation should vanish in transport thr

109 cribed within the framework of gapping Dirac quasiparticles due to broken time-reversal symmetry.

110 esolved photoemission can directly image the quasiparticle dynamics of the d-electron subband ladder

111 re typically an indication of unconventional quasiparticle dynamics, such as inelastic scattering, or

112 ect the current to be carried by partitioned quasiparticles, each with energy-dependent charge, being

113 ealing a dramatic doping-dependent upturn in quasiparticle effective mass at a critical metal-insulat

114 ions that reveal a strong enhancement of the quasiparticle effective mass toward optimal doping.

115 Luttinger's theorem and a strongly enhanced quasiparticle effective mass.

116 cal point (QCP) characterized by a divergent quasiparticle effective mass.

117 How coherent quasiparticles emerge by doping quantum antiferromagnets

118 gation of the density and correlation of the quasiparticle excitation of the superconducting qubit an

119 Magnetoelectricity creates a novel quasiparticle excitation--the electromagnon--at terahert

120 which occur in systems with an energy gap to quasiparticle excitations (such as insulators or superco

121 f dissipation, despite the presence of lossy quasiparticle excitations above the superconducting gap,

122 ignals can be dissipative in the presence of quasiparticle excitations above the superconducting gap.

123 unusual crystal that hosts Weyl fermions as quasiparticle excitations and features Fermi arcs on its

124 tation spectrum often has nodes, which allow quasiparticle excitations at low energies.

125 This gives rise to special quasiparticle excitations at THz frequencies called elec

126 Majorana zero modes are quasiparticle excitations in condensed matter systems th

127 possible realization of Majorana fermions as quasiparticle excitations in condensed-matter physics ha

128 We thus uncover the softening of a branch of quasiparticle excitations located away from the traditio

129 esults are discussed within a picture of e/4 quasiparticle excitations potentially possessing non-Abe

130 Andreev reflection of quasiparticle excitations provides a sensitive and passi

131 redicted to produce the long-sought Majorana quasiparticle excitations.

132 m chaos for a critical Fermi surface without quasiparticle excitations.

133 phase in the spectrum of hybrid light-matter quasiparticles-exciton-polaritons in semiconductor micro

134 nneling occurs when, under normal incidence, quasiparticles exhibit unimpeded penetration through pot

135 The quasiparticles form a chiral field, which breaks the tim

136 neous time-reversal symmetry breaking, whose quasiparticles form three-dimensional quantum Hall and W

137 Exciton-polaritons are hybrid light-matter quasiparticles formed by strongly interacting photons an

138 se transitions, generating a series of novel quasiparticles, from isospin-1 triplet fermions to tripl

139 stood in terms of elementary excitations, or quasiparticles--fundamental quanta of energy and momentu

140 agnetic disorder, which close and reopen the quasiparticle gap of the paired electrons in a nontrivia

141 h a clear method for discerning relativistic quasiparticles has not yet been established.

142 Non-Abelian quasiparticles have been predicted to exist in a variety

143 ical polaritons, i.e., hybrid exciton-photon quasiparticles, have been proposed to demonstrate scatte

144 on of a Bose glass of field-induced magnetic quasiparticles in a doped quantum magnet (bromine-doped

145 Magnons and phonons are fundamental quasiparticles in a solid and can be coupled together to

146 onductivity is a signature of the absence of quasiparticles in a strongly correlated electron fluid w

147 , which we call chirons, resemble low-energy quasiparticles in bilayer graphene and emerge regardless

148 msey spectroscopy methods for observing Weyl quasiparticles in cold alkaline-earth-atom systems.

149 the spectroscopic signatures of relativistic quasiparticles in emergent topological materials is cruc

150 Here we demonstrate that the Dirac quasiparticles in graphene provide a dramatic departure

151 d environment-are among the most fundamental quasiparticles in interacting many-body systems, and eme

152 The emergence of quasiparticles in interacting matter represents one of t

153 the pump pulses photoexcite non-equilibrium quasiparticles in LCMO, which rapidly interact with phon

154 Trimerons may be important quasiparticles in magnetite above the Verwey transition

155 Creating polaritonic quasiparticles in monolithic, compact architectures with

156 tic monopoles have been proposed as emergent quasiparticles in pyrochlore spin ice compounds.

157 ntly for polaritons: half-matter, half-light quasiparticles in semiconductor microcavities.

158 a strong lattice coupling of photon-induced quasiparticles in spin-orbital coupling Mott insulator S

159 Here we report that spin-polarized quasiparticles in superconducting aluminium layers have

160 r an abrupt destruction of Fermi liquid-like quasiparticles in the correlated metal LaNiO(3) when con

161 esults establish the existence of fractional quasiparticles in the high-energy spectrum of a quasi-tw

162 ding reveals significantly slower buildup of quasiparticles in the superconducting state than in the

163 ecting the magnetic response of relativistic quasiparticles in topological materials.

164 we show that the recent observation of Ising quasiparticles in URu(2)Si(2) results from a spinor orde

165 standard Fermi-liquid picture of long-lived quasiparticles in well-defined band states emerge at low

166 laritons, which are localized or propagating quasiparticles in which photons are coupled to the quasi

167 to reduce the number of unpaired electrons (quasiparticles) in close proximity to the device.

168 t barely explored for charge-neutral bosonic quasiparticles (including their condensates), which hold

169 device whose memristive behavior arises from quasiparticle-induced tunneling when supercurrents are c

170 equent relaxation, which are consistent with quasiparticles injection across a rigid semiconducting g

171 nsition metal dichalcogenides can couple the quasiparticle interaction between the 2D material and su

172 o the tunable interplay between topology and quasiparticle interactions (3-6) .

173 Additional quasiparticle interactions may also create strongly corr

174 system (exciton) and bath (vacuum and other quasiparticles) interactions and determines the timescal

175 a scanning tunneling microscope, we compared quasiparticle interference (QPI) occurring in the edge s

176 and conduct the analysis of phase-referenced quasiparticle interference (QPI).

177 dge state interferometer designed to observe quasiparticle interference effects.

178 delocalized electronic states detectable by quasiparticle interference imaging are dispersive along

179 We used Bogoliubov quasiparticle interference imaging to determine the Ferm

180 ts of the heavy-fermion band structure using quasiparticle interference imaging to reveal quantitativ

181 Heavy-quasiparticle interference imaging within this gap revea

182 enology that was theoretically predicted for quasiparticle interference in a phase-incoherent d-wave

183 lgorithm allows for the complete recovery of quasiparticle interference in this material.

184 rous sets of dispersing modulations with the quasiparticle interference model shows that no additiona

185 e symmetric "octet" of dispersive Bogoliubov quasiparticle interference modulations.

186 g tunneling spectroscopy was used to measure quasiparticle interference patterns in epitaxial graphen

187 dip-hump gap features and fourfold symmetric quasiparticle interference patterns taken at the zero en

188 When analysed as arising from quasiparticle interference, the modulations yield elemen

189 In the model of quasiparticle interference, this presence of an effectiv

190 By combining Landau level spectroscopy and quasiparticle interference, we distinguish a large spin-

191 to observe temperature evolution of the 5/2 quasiparticle interference.

192 Here, a new quasiparticle is reported, "polaronic trion" in a hetero

193 crossing predicted for strongly interacting quasiparticles is reached, and the local susceptibility

194 Scattering of the antinodal quasiparticles is therefore strongly influenced by nanom

195 Scattering and interference of the composite quasiparticles is used to resolve their energy-momentum

196 y of the broken Cooper pairs, referred to as quasiparticles, is orders of magnitude higher than the v

197 ons with Ising 5f(2) states to produce Ising quasiparticles; it accounts for the large entropy of con

198 search, and they have been found to form new quasiparticles known as Fermi polarons.

199 pological semimetal CoSi, which hosts exotic quasiparticles known as multifold fermions.

200 The system exhibits Dirac quasiparticle-like transport, that is, pseudo-diffusion

201 The four states correspond to two spin-(1/2) quasiparticles localised at the ends of the macroscopic

202 Quasiparticles made of such light-matter microcavity pol

203 relate this effect to the Berry curvature of quasiparticle magnetic sub-bands, and calculate the depe

204 nts reveal an unusual coexistence of a light quasiparticle mass and signatures of strong many-body in

205 s of a Weyl state, including light effective quasiparticle masses, ultrahigh carrier mobility, as wel

206 These interactions may lead to quasiparticles mimicking the massless relativistic dynam

207 hene, annealed so that it achieves very high quasiparticle mobilities (greater than 10(6) square cent

208 Ordinary quasiparticle models can account for neither the strengt

209 s achieved both classically, by manipulating quasiparticle momenta with a magnetic field, and quantum

210 Bogolyubov quasiparticles move in a practically uniform magnetic fi

211 in real space, which is the hallmark of its quasiparticle nature, has so far remained elusive.

212 within the CuO chains appear to retain their quasiparticle nature.

213 less strongly coupled to the charge-carrying quasiparticles near the Fermi energy.

214 The quasiparticles near the Weyl nodes develop out of the Ko

215 nal Fermi Liquid at optimal doping, to a non-quasiparticle non-Fermi Liquid in the underdoped regime.

216 -degenerate nodes realize emergent fermionic quasiparticles not present in relativistic quantum field

217 An exciton is the bosonic quasiparticle of electron-hole pairs bound by the Coulom

218 Here we create and image a quasiparticle of topological plasmonic spin texture in a

219 is the use of mobile impurities that bind to quasiparticles of a host many-body system.

220 In the bi-layer case, the quasiparticles of the system (skyrmions) have bosonic st

221 Magnon-polaritons are hybrid light-matter quasiparticles originating from the strong coupling betw

222 bserve a threshold momentum beyond which the quasiparticle peak merges with the two-quasiparticle con

223 the relaxation component of superconducting quasiparticles persisted from the superconducting state

224 Here, we show that the standard quasiparticle picture of the entanglement evolution, com

225 que opportunity to explore how the fermionic quasiparticle picture recovers, and over what time scale

226 ned by incompatibility with the conventional quasiparticle picture, is a theme common to many strongl

227 binding energy, signaling a breakdown of the quasiparticle picture.

228 This quasiparticle plays an important role in the spectral fu

229 solid systems and are often described from a quasiparticle point of view as magnons.

230 Gap and quasiparticle population dynamics revealed marked depend

231 tudy the initial rise of the non-equilibrium quasiparticle population in a Bi2Sr2CaCu2O8+delta cuprat

232 Understanding how these unconventional quasiparticles propagate and interact remains largely un

233 s the fact that Brown-Zak fermions are Bloch quasiparticles propagating in high fields along straight

234 We report a detailed investigation of the quasiparticle (QP) recombination lifetime, tauqp, as a f

235 Using many-body quasiparticle (QP) techniques, we show that the frontier

236 ing degrees of freedom emerge weakly coupled quasiparticles (QPs), in terms of which most physical pr

237 dow into the dynamical processes that govern quasiparticle recombination and gap formation in cuprate

238 , for repulsive interactions, we study novel quasiparticles--repulsive polarons--the lifetime of whic

239 ices of sizes up to 8 x 8, shows anisotropic quasiparticle residue around the pocket Fermi surfaces.

240 Phonon polaritons, hybrid light-matter quasiparticles resulting from strong coupling of the ele

241 ions that alter the nature of the electronic quasiparticles, resulting in phenomena such as non-Fermi

242 The lifetime of the emergent heavy quasiparticles reveals signatures of enhanced scattering

243 a scanning tunneling microscope to visualize quasiparticle scattering and interference at the surface

244 Here, we introduce intraband Bogoliubov quasiparticle scattering interference (QPI) techniques f

245 interpretation of these signals in terms of quasiparticle scattering is developed.

246 Confirming the existence of localized e/4 quasiparticles shows that proposed interferometry experi

247 for a wide range of proposals to achieve new quasiparticle species and device functionality.

248 in the superconducting state have revealed a quasiparticle spectrum with a d-wave gap structure that

249 The quasiparticle spins are mapped onto a robust, macroscopi

250 electron fluid, where anisotropically paired quasiparticle states are energetically favoured.

251 Nodal quasiparticle states are well established in copper-oxid

252 results in the presence of gapless or nodal quasiparticle states in the excitation spectrum.

253 Majorana zero modes-quasiparticle states localized at the boundaries of topo

254 ation between the superfluid density and the quasiparticle strength (the height of the coherence peak

255 logical phases of matter hosting non-Abelian quasiparticles (such as anyons) can emerge when a semico

256 The notion of a quasiparticle, such as a phonon, a roton or a magnon, is

257 ts with electrons and generates light-matter quasiparticles, such as excitons(6) or plasmons(7), on a

258 Materials harbouring exotic quasiparticles, such as massless Dirac and Weyl fermions

259 -in ultracold atomic gases, but also between quasiparticles, such as microcavity polaritons.

260 orm to study the interplay between different quasiparticles, such as prominent phonon replica emissio

261 erent from the newly observed unconventional quasiparticles, such as the spin-1 Weyl points and the c

262 ns lead to characteristic resonances--called quasiparticles--such as excitons, dropletons, polarons a

263 ons, either free ions or correlated domains (quasiparticles), take on the role of ions in traditional

264 Cavity magnon polaritons are mixed quasiparticles that arise from the strong coupling betwe

265 f crystalline solids by introducing suitable quasiparticles that have an effective mass, spin or char

266 dberg excitations to form polaritons(15-17), quasiparticles that here behave like electrons in the lo

267 pins-1/2 are spinons, de-confined fractional quasiparticles that when combined in pairs, form a tripl

268 an ideal platform for realization of exotic quasiparticles, that are robust and whose functionalitie

269 ting magnetic responses for non-relativistic quasiparticles, the non-saturating signals of TaAs in st

270 o the unique electronic configuration of the quasiparticles, the strong lattice correlation is unexpe

271 The simplest non-Abelian quasiparticles--the Majorana bound states--can occur in

272 We use the recently developed critical quasiparticle theory to derive the scaling behavior asso

273 The copper oxide quasiparticles therefore apparently exhibit particle-hol

274 ntum states formed by half-matter half-light quasiparticles, thus connecting the phenomena of atomic

275 In correlated oxides the coupling of quasiparticles to other degrees of freedom such as spin

276 n by an externally applied heat current, the quasiparticles' trajectories may bend, causing a tempera

277 hese results highlight the prominent role of quasiparticle trapping in future development of supercon

278 quasiparticle, and show quantized changes in quasiparticle trapping rate because of individual vortic

279 ically, the coupling between NGBs and Landau quasiparticles vanishes at low energies, leaving the gap

280 ng data for the Fermi surface topography and quasiparticle velocities of Sr(3)Ru(2)O(7), we show that

281 essed because of the symmetries of the Dirac quasiparticles, we show that, when its source is atomic-

282 symmetry, the t 2g manifold is split and the quasiparticle weight is renormalized significantly in th

283 ns--Nambu-Goldstone bosons (NGBs) and Landau quasiparticles--when coupled to one another, which is of

284 ocess to the composite nature of these heavy quasiparticles, which arises from quantum entanglement o

285 These quasiparticles, which can be optically created with vall

286 characterizing the dispersion of individual quasiparticles, which gives a direct probe of their frac

287 tion of electrons into anyons and chargeless quasiparticles, which in some cases can be Majorana ferm

288 ollective phases emerge, is characterized by quasiparticles whose spin is locked to their valley pseu

289 Non-Abelian anyons are a type of quasiparticle with the potential to encode quantum infor

290 t approach is to bind electrons into bosonic quasiparticles with a photonic component.

291 ifferent dispersion relations indicates that quasiparticles with different group velocity may coexist

292 c flux quanta bind to form complex composite quasiparticles with fractional electronic charge; these

293 Polaritons are widely investigated quasiparticles with fundamental and technological signif

294 spatially localized, zero-energy fractional quasiparticles with non-Abelian braiding statistics that

295 latter, unpaired holes behave like coherent quasiparticles with pairing drastically weakened, whose

296 ing a condensed-matter platform for studying quasiparticles with relativistic-like features.

297 connect these two realms, producing bosonic quasiparticles with static dipole moments.

298 Dirac and Weyl semimetals host exotic quasiparticles with unconventional transport properties,

299 are successfully treated as a collection of quasiparticles with weak or no interactions.

300 ough never observed as elementary particles, quasiparticles with Weyl dispersion have recently been e