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相关论文: A Two Dimensional Fermi Liquid. Part 3: The Fermi …

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We compute the level density of a two--component Fermi gas as a function of the number of particles, angular momentum and excitation energy. The result includes smooth low--energy corrections to the leading Bethe term (connected to a…

核理论 · 物理学 2008-11-26 Patricio Leboeuf , Jérôme Roccia

Electronic density of states (DOS) at Fermi level has been investigated in ultrathin Ag films grown on Si(111)-(7x7) down to the two dimensional limit of a single atomic layer. Measurement of DOS at Fermi level by scanning tunneling…

介观与纳米尺度物理 · 物理学 2014-12-04 R. Batabyal , A. H. M. Abdul Wasey , J. C. Mahato , Debolina Das , G. P. Das , B. N. Dev

We discuss various superfluid properties of a two-component Fermi system in the presence of a tight one-dimensional periodic potential in a three-dimensional system. We use a zero temperature mean field theory and derive analytical…

其他凝聚态物理 · 物理学 2009-01-16 Theja N. De Silva

Fermi-edge singularity changes in a dramatic way in a nonequilibrium system, acquiring features which reflect the structure of energy distribution. In particular, it splits into several components if the energy distribution exhibits…

介观与纳米尺度物理 · 物理学 2008-04-12 D. A. Abanin , L. S. Levitov

We study the fermionic spectral density in a strongly correlated quantum system described by a gravity dual. In the presence of periodically modulated chemical potential, which models the effect of the ionic lattice, we explore the shapes…

高能物理 - 理论 · 物理学 2020-02-19 Floris Balm , Alexander Krikun , Aurelio Romero-Bermúdez , Koenraad Schalm , Jan Zaanen

The hydrodynamic regime of electron transport has been recently realized in conductors with ultra-low densities of defects. Although relaxation processes in two-dimensional (2D) fluids have been studied in many theoretical works, the…

介观与纳米尺度物理 · 物理学 2021-01-04 P. S. Alekseev , A. P. Dmitriev

The hydrodynamic description of the Fermi arc surface states is proposed. In view of the strong suppression of scattering on impurities, the hydrodynamic regime for Fermi arc states should be, in principle, plausible. By using the kinetic…

强关联电子 · 物理学 2019-04-19 E. V. Gorbar , V. A. Miransky , I. A. Shovkovy , P. O. Sukhachov

We present experimental results on the tunneling into the edge of a two dimensional electron gas (2DEG) obtained with a GaAs/AlGaAs cleaved edge overgrown structure in a strong perpendicular magnetic field. While the 2DEG exhibits typical…

介观与纳米尺度物理 · 物理学 2009-11-07 M. Hilke , D. C. Tsui , M. Grayson , L. N. Pfeiffer , K. W. West

The paramagnetic phase of the two-channel Kondo lattice model is examined with a Quantum Monte Carlo simulation in the limit of infinite dimensions. We find non-Fermi-liquid behavior at low temperatures including a finite low-temperature…

凝聚态物理 · 物理学 2009-10-28 M. Jarrell , Hanbin Pang , D. L. Cox , F. Anders , A. Chattopadhyay

The Fermi surface may be usefully viewed as a collection of 1+1 dimensional chiral conformal field theories. This approach permits straightforward calculation of many anomalous ground state properties of the Fermi gas including entanglement…

强关联电子 · 物理学 2012-10-03 Brian Swingle

D2-D8 model admits a numerical solution that corresponds to a charge density wave and a spin density wave. Considering that as the background, we numerically solve the Dirac equation for probe fermions. From the solution, we obtain the…

高能物理 - 理论 · 物理学 2021-10-13 Subir Mukhopadhyay , Nishal Rai

Kinetic properties of a two dimensional model of fermions interacting with antiferromagnetic spin excitations near the quantum critical point (QCP) are considered. The temperature or doping are assumed to be sufficiently high, such that the…

强关联电子 · 物理学 2015-06-22 K. B. Efetov

We report a two-step density-matrix renormalization-group computation of the equal-time single-particle Green's function, the density-density correlations, and the low-frequency spectral weight function of a spinless fermion model in an…

强关联电子 · 物理学 2015-05-18 S. Moukouri , E. Eidelstein

We prove that the two dimensional Hubbard model at finite temperature T and half-filling is analytic in the coupling constant in a radius at least $c/(\log T)^2$. We also study the self-energy through a new two-particle irreducible…

强关联电子 · 物理学 2009-11-10 Stephane Afchain , Jacques Magnen , Vincent Rivasseau

We study the equilibrium thermodynamics of quantum hard spheres in the infinite-dimensional limit, determining the boundary between liquid and glass phases in the temperature-density plane by means of the Franz-Parisi potential. We find…

We consider a generic two-dimensional system of fermionic particles with attractive interactions and no disorder. If time-reversal symmetry is absent, it is possible to obtain incompressible insulating states in addition to the superfluid…

超导电性 · 物理学 2012-06-12 Predrag Nikolic

We review the current understanding of the uniform two-dimensional (2D) Fermi gas with short-range interactions. We first outline the basics of two-body scattering in 2D, including a discussion of how such a 2D system may be realized in…

量子气体 · 物理学 2015-10-21 Jesper Levinsen , Meera M. Parish

We develop a variational approach to calculate the density response function at finite temperatures of the lowest-lying two-fluid modes in a trapped two-component Fermi superfluid close to a Feshbach resonance. The out-of-phase…

其他凝聚态物理 · 物理学 2007-11-20 Edward Taylor , Hui Hu , Xia-Ji Liu , Allan Griffin

The thermodynamic properties of the Boltzmann hard sphere system is discussed. It was found that zero point energy decreases with temperature so slowly that it turned out to be an almost a constant addition to the classical value. In result…

其他凝聚态物理 · 物理学 2023-07-06 Sergei Stishov

We analytically study the inelastic lifetime of quasiparticles due to particle-particle interactions in a three-dimensional Fermi liquid approaching a density-wave instability. Using the G$_0$W approximation, we find that the softening of…

强关联电子 · 物理学 2024-08-13 Iran Seydi , Saeed H. Abedinpour , Reza Asgari , B. Tanatar