Bosonic excitations
WebApr 11, 2011 · A remarkable feature of a Luttinger liquid is the nature of its low-energy excitations, which are collective bosonic excitations rather than the single-particle fermionic excitations described by Fermi-liquid … WebQuasiparticle. In physics, quasiparticles and collective excitations are closely related emergent phenomena arising when a microscopically complicated system such as a solid behaves as if it contained different weakly interacting particles in vacuum. For example, as an electron travels through a semiconductor, its motion is disturbed in a ...
Bosonic excitations
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WebOct 15, 2003 · For bosonic excitations which are not Goldstone modes, we argue that an excitation density varying with frequency as ρ (ω) ∝ ω 4 is a universal feature in …
WebOct 6, 2024 · On the other hand, the bosons, like phonons, magnons, and photons, were also shown to possess nontrivial topology and a comprehensive symmetry classification … WebIn the latter case, this leads to the emergence of acoustic and spin wave excitations with markedly different spectra. According to the new theory, such differences should be evident in the way a 1-D system of ultracold bosonic atoms absorbs different frequencies of light. Theoretical physicists from Argonne National Laboratory, US, and RIKEN ...
WebAug 15, 2016 · We study the topological properties of elementary excitations in a staggered ${p}_{x}\ifmmode\pm\else\textpm\fi{}i{p}_{y}$ Bose-Einstein condensate realized in recent orbital optical lattice experiments. ... π-Flux Dirac Bosons and Topological Edge Excitations in a Bosonic Chiral p-Wave Superfluid Zhi-Fang Xu, Li You, Andreas … WebDec 3, 2024 · Nematic superconductivity with spontaneously broken rotation symmetry has recently been reported in doped topological insulators, M x Bi 2 Se 3 (M = Cu, Sr, Nb).Here we show that the electromagnetic (EM) response of these compounds provides a spectroscopy for bosonic excitations that reflect the pairing channel and the broken …
Having identified the two different elementary excitations, we discuss their rotational symmetry. Figure 2a, b and Supplementary Figs. 4–5 exhibit the angle-dependent variation of the magnetic Raman spectra at T = 4.3 K and T = 300 K. In the high-T hydrodynamic regime, we observe a quasielastic response … See more In Fig. 1a–c, we schematically illustrate the S = 1/2 spinons (pink-colored domains) and S = 1 triplons (green ovals) and their dispersions. We further sketch two scattering geometries on the ATL plane in Fig. 1d. For … See more To trace dynamical behaviors of the triplons and spinons, we measured a thermal evolution of the magnetic continuum from T = 4.3 to 300 K in three (bb), (cc), and (bc) … See more Unlike the (bb) and (cc) polarization data, both I1p(T) and I2p(T) in (bc) polarization decrease with temperature in the same fashion, modeled by a double-exponential form \({{{\mathrm{exp … See more
WebDec 28, 2024 · We first consider a generic one-dimensional boson-affected hopping model, in which we show that single particles move only at sixth order in perturbation theory, while motion of bound states occurs at second order, allowing for a broad parameter regime exhibiting approximate fracton phenomenology. godwin witten cairnsWebNov 17, 2024 · Bosons originate from the wave-like collective excitations of the magnetic moments at high magnetic field. Both types of particles can give rise to the thermal Hall effect if the materials used... book polynesian resort disneyWebMar 30, 2012 · Unveiling the nature of the bosonic excitations that mediate the formation of Cooper pairs is a key issue for understanding unconventional … book pooh heart dvd 2001WebJan 14, 2024 · Figure 7. Damping of bosonic spin excitations and destruction of topological properties. (a) Single-magnon band (solid curves) and two-magnon continuum (light blue area) in an S = 1 Heisenberg chain. The single-magnon band overlaps the two-magnon continuum around the Γ point, yielding the nonperturbative damping of … book polysecureWebOct 15, 2003 · For bosonic excitations which are not Goldstone modes, we argue that an excitation density varying with frequency as ρ(ω)∝ω4 is a universal feature in systems … bookpoint didcotWebAug 8, 2024 · Abstract We identify the bosonic excitations in ferroelectrics that carry electric dipoles from the phenomenological Landau-Ginzburg-Devonshire theory. The “ferron” quasiparticles emerge from the concerted action of anharmonicity and broken inversion symmetry. godwin witten real estateWebOct 1, 2024 · Therefore, the bosonic excitations are expected to generate peculiar topological phases beyond the common AZ classification. Then a problem naturally … godwin wide receiver