搜索结果: 1-14 共查到“理论物理学 fermions”相关记录14条 . 查询时间(0.126 秒)
Truncated-Determinant Diagrammatic Monte Carlo for Fermions with Contact Interaction
Model of fermion monte carlo simulation electric automatic way
2014/12/20
For some models of interacting fermions the known solution to the notorious sign problem in Monte Carlo (MC) simulations is to work with macroscopic fermionic determinants; the price, however, is a ma...
Critical Temperature and Thermodynamics of Attractive Fermions at Unitarity
Dilution system lattice fermion monte carlo thermodynamic functions
2014/12/20
The unitarity regime of the BCS-BEC crossover can be realized by diluting a system of two-component lattice fermions with an on-site attractive interaction. We perform a systematic-error-free finite-t...
Diagrammatic Monte Carlo for correlated fermions
Feynman diagrams series fermion quantum thermodynamics hubbard model Fermi liquid regime single particle energy itself
2014/12/18
We show that Monte Carlo sampling of the Feynman diagrammatic series (DiagMC) can be used for tackling hard fermionic quantum many-body problems in the thermodynamic limit by presenting accurate resul...
Principles for a Unified Picture of Fermions
Principles Unified Picture of Fermions General Physics
2012/5/31
The principles and conceptual foundations required for a unified picture of fermions are clarified, which in turn suggest that the standard theory may be reducible in a far simpler form. The resultant...
Quasibosons composed of two q-fermions: realization by deformed oscillators
deformed oscillators Quasibosons composed of two q-fermions Mathematical Physics
2011/9/22
Abstract: Composite bosons or quasibosons (e.g. mesons, excitons, etc.) occur in various physical situations. Quasibosons differ from bosons or fermions as their creation and annihilation operators ob...
The BCS gap equation for spin-polarized fermions
The BCS gap equation spin-polarized fermions Quantum Gases
2011/8/23
Abstract: We study the BCS gap equation for a Fermi gas with unequal population of spin-up and spin-down states. For $\cosh(\delta_\mu/T) \leq 2$, with $T$ the temperature and $\delta_\mu$ the chemica...
Simulating quantum statistics with entangled photons: a continuous transition from bosons to fermions
quantum statistics entangled photons bosons fermions
2011/9/9
In contrast to classical physics, quantum mechanics divides particles into two classes|bosons and fermions|whose exchange statistics dictate the dynamics of systems at a fundamental level . In two dim...
Population imbalance and pairing in the BCS-BEC crossover of three-component ultracold fermions
Population imbalance three-component ultracold fermions
2010/11/17
We investigate the phase diagram and the BCS-BEC crossover of a homogeneous three-component
ultracold Fermi gas with a U(3) invariant attractive interaction. We show that the system at
sufficiently ...
A new approach for studying large numbers of fermions in the unitary regime
new approach large numbers of fermions
2011/1/10
A novel lattice approach is presented for studying systems comprising a large number of interacting nonrelativistic fermions.
Statistically induced Phase Transitions: Turning Bosons smoothly via Anyons into Fermions
Phase Transitions Fermions
2010/10/27
Anyons { particles carrying fractional statistics that interpolate between bosons and fermions { have been conjectured to exist in low dimensional systems. In the context of the fractional quantum Hal...
Gravity in presence of fermions as a SU(2) gauge theory
fermions SU(2) gauge theory Gravity
2010/3/17
The Hamiltonian formulation of the Holst action in presence of a massless fermion field with a non-minimal Lagrangian is performed without any restriction on the local Lorentz frame. It is outlined th...
D-Dimensional Dirac Fermions BEC-BCS Crossover Thermodynamics
unitary fermions thermodynamics BEC-BCS crossover statistical
methods
2007/8/15
2007Vol.48No.1pp.99-106DOI:
D-Dimensional Dirac Fermions BEC-BCS Crossover Thermodynamics
CHEN Ji-Sheng
Institute of Particle Physics & Physics Department, Central China...
Top Quark, Heavy Fermions and the Composite Higgs Boson
Higgs compositeness vector-like fermion
2007/8/15
2001Vol.35No.2pp.162-166DOI:
Top Quark, Heavy Fermions and the Composite Higgs Boson
ZHANG Bin and ZHENG Han-Qing
Department of Physics, Peking University, Beijing 10087...
Effective Lagrangian of SU(2) Yang-Mills Theory in the Presence of Fermions
SU(2) QCD confinement of color effective Lagrangian
2007/8/15
2002Vol.37No.5pp.575-578DOI:
Effective Lagrangian of SU(2) Yang-Mills Theory in the Presence of Fermions
FAN Ji-Yang,1 JIANG Ying2, and ZHU Zhong-Yuan3,4
1 Department of...