搜索结果: 1-15 共查到“量子力学 Lattice”相关记录16条 . 查询时间(0.015 秒)
A density-functional approach on the hexagonal graphene lattice is developed using an exact
numerical solution to the Hubbard model as the reference system. Both nearest-neighbour and up
to third ne...
Lattice QCD at the physical point: light quark masses
Lattice QCD physical point light quark masses
2011/1/7
Ordinary matter is described by six fundamental parameters: three couplings (gravitational,
electromagnetic and strong) and three masses: the electron’s (me) and those of the up (mu)
and down (md) q...
Wave Functions of the Proton Ground State in the Presence of a Uniform Background Magnetic Field in Lattice QCD
Wave Functions of the Proton Ground State Uniform Background Magnetic Field
2011/1/13
We calculate the probability distributions of quarks in the ground state of the proton, and how
they are a ected in the presence of a constant background magnetic eld. We focus on wave functions in ...
Quark masses with Nf=2 twisted mass lattice QCD
Quark masses Nf=2 twisted mass lattice QCD
2011/1/13
We present the results of the recent high precision lattice calculation of the average up/down,
strange and charm quarkmasses performed by ETMC with Nf =2 twisted massWilson fermions.
The analysis i...
QCD, monopoles on the Lattice and gauge invariance
QCD Lattice Monopoles Color confinement
2011/1/13
The number and the location of the monopoles observed on the lattice in QCD configurations happens to depend strongly on the choice of the gauge used to expose them, in contrast to the physical expect...
The anti-quark--quark potential from Bethe-Salpeter amplitudes on lattice
anti-quark--quark potential Bethe-Salpeter amplitudes lattice
2011/1/7
Potentials of quark–anti-quark pairs are studied from the q¯-q Nambu-Bethe-Salpeter (NBS) wave functions in quenched lattice QCD. With the use of a method which has been recently developed in the...
The U(1) Lattice Gauge Theory Universally Connects All Classical Models with Continuous Variables, Including Background Gravity
Lattice gauge theory Statistical mechanics Quantum information
2010/11/4
We show that the partition function of many classical models with continuous degrees of freedom, e.g. abelian lattice gauge theories and statistical mechanical models, can be written as the partition...
Search on a Hypercubic Lattice using Quantum Random Walk: d>2
Hypercubic Lattice Quantum Random
2010/3/10
Random walks describe diffusion processes, where movement at every time step is restricted to only the neighbouring locations. We construct a quantum random walk algorithm, based on discretisation of ...
Regular and chaotic Bose-Einstein condensate in an accelerated Wannier-Stark lattice
Regular and chaotic Bose-Einstein condensate Wannier-Stark lattice
2010/4/9
We investigate a Bose-Einstein condensate held in a quasi-one-dimensional Wannier-Stark lattice which is a combination of linear potential with an accelerated optical lattice. It is demonstrated that ...
Quantum dynamics of instability-induced pulsations of a Bose-Einstein condensate in an optical lattice
Quantum dynamics instability-induced pulsations Bose-Einstein condensate optical lattice
2010/4/13
We study the dynamics of a Bose-Einstein condensate in a one-dimensional optical lattice in the limit of weak atom-atom interactions, including an approximate model for quantum fluctuations. A pulsati...
Quantum and Classical Dynamics of a BEC in a Large-Period Optical Lattice
Quantum and Classical Dynamics BEC Large-Period Optical Lattice
2010/4/8
We experimentally investigate diffraction of a Rb-87 Bose-Einstein condensate from a 1D optical lattice. We use a range of lattice periods and timescales, including those beyond the Raman-Nath limit. ...
Multistable Spatiotemporal Dynamics in the Driven
Frenkel-Kontorova Lattice
Frenkel-Kontorova model kink-antikink pair dynamical
contraction factor
2007/8/15
2001Vol.36No.1pp.37-43DOI:
Multistable Spatiotemporal Dynamics in the Driven
Frenkel-Kontorova Lattice
ZHENG Zhi-Gang
Department of Physics, Beijing Normal University, B...
Quantum Solitons and Localized Modes in a One-Dimensional Lattice Chain with
Nonlinear Substrate Potential
number state method Hartree approximation quantum envelope soliton quantum
localized mode
2007/8/15
2006Vol.45No.5pp.869-872DOI:
Quantum Solitons and Localized Modes in a One-Dimensional Lattice Chain with
Nonlinear Substrate Potential
LI De-Jun,1,2 MI Xian-Wu,1 DENG Ke,1 and TA...
Lattice Bhatnagar-Gross-Krook Simulations in 2-D Incompressible
Magnetohydrodynamics
lattice BGK model incompressible magnetohydrodynamics
2007/8/15
2005Vol.44No.5pp.917-920DOI:
Lattice Bhatnagar-Gross-Krook Simulations in 2-D Incompressible
Magnetohydrodynamics
MA Chang-Feng,1,2,3 SHI Bao-Chang,3 and CHEN Xing-Wang3
...
Using in measurements of the phonon frequencies of bcc Titanium, the lattice dynamical calculations are performed on the same phase by using the Third-neighbour Clark-Gazis-Wallis(CGW) model. The theo...