Results 31 to 40 of about 5,965 (154)
Absence of a BCS-BEC crossover in the cuprate superconductors
npj Quantum Materials, 2023 We examine key aspects of the theory of the Bardeen–Cooper–Schrieffer (BCS) to Bose–Einstein condensation (BEC) crossover, focusing on the temperature dependence of the chemical potential, μ.
John Sous, Yu He, Steven A. Kivelson
doaj +1 more source
BCS-BEC Crossover Effects and Pseudogap in Neutron Matter
Universe, 2020 Due to the large neutron–neutron scattering length, dilute neutron matter resembles the unitary Fermi gas, which lies half-way in the crossover from the BCS phase of weakly coupled Cooper pairs to the Bose–Einstein condensate of dimers.
David Durel, Michael Urban
doaj +1 more source
Evolution of pairing from weak to strong coupling on a honeycomb lattice [PDF]
, 2009 We study the evolution of the pairing from weak to strong coupling on a honeycomb lattice by Quantum Monte Carlo. We show numerical evidence of the BCS-BEC crossover as the coupling strength increases on a honeycomb lattice with small fermi surface by ...
A. J. Leggett +4 more
core +3 more sources
Cavity nonlinear optics with layered materials
Nanophotonics, Volume 7, Issue 2, Page 355-370, January 2018., 2018 Abstract Unprecedented material compatibility and ease of integration, in addition to the unique and diverse optoelectronic properties of layered materials, have generated significant interest in their utilization in nanophotonic devices. While initial nanophotonic experiments with layered materials primarily focused on light sources, modulators, and ...
Taylor Fryett, Alan Zhan, Arka Majumdar
wiley +1 more source
, 2014 Superconductivity in iron-based, magnesium diborides, and other novel superconducting materials has a strong multi-band and multi-gap character. Recent experiments support the possibillity for a BCS-BEC crossover induced by strong-coupling and proximity ...
Guidini, Andrea, Perali, Andrea
core +1 more source
Topological quantum phase transition in the BEC-BCS crossover phenomena [PDF]
, 2010 A crossover between the Bose Einstein condensation (BEC) and BCS superconducting state is described topologically in the chiral symmetric fermion system with attractive interaction.
Isao Maruyama +5 more
core +2 more sources
UEG Week 2022 Oral Presentations
, 2022 United European Gastroenterology Journal, Volume 10, Issue S8, Page 9-184, October 2022.
wiley +1 more source
The Dirac spectrum and the BEC-BCS crossover in QCD at nonzero isospin asymmetry
Particles, 2020 For large isospin asymmetries, perturbation theory predicts the quantum chromodynamic (QCD) ground state to be a superfluid phase of u and d ¯ Cooper pairs.
Bastian B. Brandt +3 more
doaj +1 more source
Two-body correlation functions in nuclear matter with $np$ condensate
, 2006 The density, spin and isospin correlation functions in nuclear matter with a neutron-proton ($np$) condensate are calculated to study the possible signatures of the BEC-BCS crossover in the low-density region.
A. A. Isayev +9 more
core +1 more source