搜索结果: 1-15 共查到“物理学 Wigner”相关记录40条 . 查询时间(0.119 秒)
In 1934, physicist Eugene Wigner made a theoretical prediction based on quantum mechanics that for decades years went unseen.
On High Moments and the Spectral Norm of Large Dilute Wigner Random Matrices
random matrices Wigner ensemble dilute random matrices
2011/9/22
Abstract: We consider a dilute version of the Wigner ensemble of n-dimensional random matrices H such that each row has in average \rho_n non-zero elements. We study asymptotic properties of the spect...
Quark Wigner Distributions and Orbital Angular Momentum
Quark Wigner Distributions Orbital Angular Momentum
2011/7/21
We study the Wigner functions of the nucleon which provide multidimensional images of the quark distributions in phase space. These functions can be obtained through a Fourier transform in the transve...
How universal is the Wigner distribution?
Wigner distribution universal Statistical Mechanics
2011/8/17
Abstract: We consider Gaussian ensembles of m N x N complex matrices. We identify an enhanced symmetry in the system and the resultant closed subsector, which is naturally associated with the radial s...
The "boson polynomials" of Gel'fand basis and the analytic expression of Wigner's coefficients with multiplicity for the canonical basis of unitary groups
Gel'fand basis Wigner's coefficients canonical basis Representation Theory
2011/7/26
Abstract: In this paper we present the generating function method for the derivation of bosons polynomials of Gel'fand basis and Wigner coefficients for the canonical basis of SU(n). We find a new ana...
Streaking and Wigner time delays in photoemission from atoms and surfaces
Streaking Wigner photoemission atoms and surfaces
2011/9/13
Streaked photoemission metrology allows the observation of an apparent relative time delay between the detection of photoelectrons from different initial electronic states. This relative delay is obta...
Strong field effects in laser pulses: the Wigner formalism
Strong field effects laser pulses
2010/12/24
We investigate strong field vacuum effects using a phase space approach based on the Wigner formalism. We calculate the Wigner function in a strong null-field background exactly, using lightfront fiel...
The Bargmann-Wigner Formalism for Higher Spins (up to 2)
The Bargmann-Wigner Formalism Higher Spins
2010/12/24
On the basis of our recent modifications of the Dirac formalism we generalize the Bargmann-Wigner formalism for higher spins to be compatible with other formalisms for bosons. Relations with dual elec...
Signatures of Wigner molecule formation in interacting Dirac fermion quantum dots
Signatures of Wigner molecule formation Dirac fermion quantum dots
2010/11/18
We study N interacting massless Dirac fermions confined in a two-dimensional quantum dot.
Physical realizations of this problem include a graphene monolayer and the surface state of a strong topologi...
The Bargmann-Wigner Formalism for Higher Spins (up to 2)
Bargmann-Wigner Formalism Higher Spins
2010/12/21
On the basis of our recent modifications of the Dirac formalism we general-ize the Bargmann-Wigner formalism for higher spins to be compatible with other formalisms for bosons.
The Wigner-Fokker-Planck equation: Stationary states and large-time behavior
Wigner-Fokker-Planck equation Stationary states large-time behavior
2010/11/11
We consider the linear Wigner-Fokker-Planck equation subject to confining potentials which are smooth perturbations of the harmonic oscillator potential. For a certain class of perturbations we prove ...
Schrödinger uncertainty relation, Wigner-Yanase-Dyson skew information and metric adjusted correlation measure
Trace inequality Wigner-Yanase-Dyson skew information
2010/10/29
In this paper, we give a Schr\"odinger-type uncertainty relation using the Wigner-Yanase-Dyson skew information. In addition, we give Schr\"odinger-type uncertainty relation by use of a two-parameter...
Wigner function evolution in self-Kerr Medium derived by Entangled state representation
Wigner function Kerr Medium entangled state representation
2010/10/29
By introducing the thermo entangled state representation, we convert the calculation of Wigner function (WF) of density operator to an overlap between "two pure" states in a two-mode enlarged Fock spa...
Operator formalism for the Wigner phase distribution
Operator formalism Wigner phase distribution
2010/10/20
The probability distribution for finding a state of the radiation field in a particular phase is described by a multitude of theoretical formalisms; the phase-sensitivity of the Wigner quasi-probabili...
Semiclassical Mechanics of the Wigner $6j$-Symbol
Semiclassical Mechanics Wigner $6j$-Symbol
2010/10/27
The semiclassical mechanics of the Wigner 6j-symbol is examined from the standpoint of WKB theory for multidimensional, integrable systems,to explore the geometrical issues surrounding the Ponzano-Reg...