Results 1 to 10 of about 5,147 (217)
Collective excitations of a bound-in-the-continuum condensate [PDF]
Nature Communications, 2023 Spectra of low-lying elementary excitations are critical to characterize properties of bosonic quantum fluids. Usually these spectra are difficult to observe, due to low occupation of non-condensate states compared to the ground state.
Anna Grudinina +10 more
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Low-Lying Collective Excitations of Superconductors and Charged Superfluids
Condensed Matter, 2023 We investigate theoretically the momentum-dependent frequency and damping of low-lying collective excitations of superconductors and charged superfluids in the BCS–BEC crossover regime.
Hadrien Kurkjian +2 more
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Collective excitations of a charged Fermi superfluid in the BCS-BEC crossover
New Journal of Physics, 2023 We consider collective excitations in the superfluid state of Fermi condensed charged gases. The dispersion and damping of collective excitations at nonzero temperatures are examined, and the coexistence and interaction of different branches of ...
S N Klimin +3 more
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Collective excitations in three-band superconductors
Condensed Matter Physics, 2023 We investigate equilibrium states, magnetic response and the normal oscillations of internal degrees of freedom (Higgs modes and Goldstone modes) of three-band superconductors accounting the terms of both internal proximity effect and the ``drag'' effect
K. V. Grigorishin
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Experimental mapping of short-wavelength phonons in proteins
The Innovation, 2022 Phonons are quasi-particles, observed as lattice vibrations in periodic materials, that often dampen in the presence of structural perturbations. Nevertheless, phonon-like collective excitations exist in highly complex systems, such as proteins, although
Utsab R. Shrestha +5 more
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Particle-Particle Collective Excitations of Sn isotopes
ARO-The Scientific Journal of Koya University, 2023 In this paper, energy-level schemes and reduced electric transition strengths of neutron-rich Tin isotopes 102, 110, 116, 120, 122Sn (Z=50) are studied using collective models, that is, particle-particle Tamm-Dancoff Approximation and particle-particle ...
Ali H. Taqi, Fahema A. Saber
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Collective excitations in jammed states: ultrafast defect propagation and finite-size scaling
New Journal of Physics, 2022 In crowded systems, particle currents can be mediated by propagating collective excitations which are generated as rare events, are localized, and have a finite lifetime.
Alexander P Antonov +3 more
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New Journal of Physics, 2012 Collective excitations in nano-plasmas are described by dynamical bi-local auto-correlation functions. These excitations, which are related to the plasmon excitations in bulk plasmas, arise in the classical as well as the quantum regime.
T Raitza +4 more
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Quasiparticle theory of collective electron excitations in graphene [PDF]
APL Electronic DevicesIn this paper, we develop a new approach for analyzing collective quantum excitations in graphene, based on the quantum multistream model. We explore a range of phenomena, including the energy band structure of collective modes, linear and nonlinear ...
M. Akbari-Moghanjoughi
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Collective excitations of massive flavor branes
Nuclear Physics B, 2016 We study the intersections of two sets of D-branes of different dimensionalities. This configuration is dual to a supersymmetric gauge theory with flavor hypermultiplets in the fundamental representation of the gauge group which live on the defect of the
Georgios Itsios +2 more
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