搜索结果: 1-15 共查到“理论物理学 coupling”相关记录60条 . 查询时间(0.093 秒)
We recently put forth a new fundamental lattice Hamiltonian based on an underlying picture of electrons and deuterons as elementary Dirac particles. Within this model there appears a term in which lat...
Running coupling in electroweak interactions of leptons from f(R)-gravity with torsion
Running coupling electroweak interactions leptons f(R)-gravity with torsion
2012/2/23
The f(R)-gravitational theory with torsion is considered for one family of leptons; it is found that the torsion tensor gives rise to interactions having the structure of the weak forces while the int...
Lie-algebraic structure of 2D harmonic oscillator with non-separable complex coupling
Lie-algebra Non-Hermitian quantum mechanics PT-symmetry Multidimensional models Harmonic oscillator Exactly solvable
2011/10/8
Abstract: Using SU(2)X SU(2) Lie-group structure we obtain the algebraization of 2D harmonic oscillator model with complex quadratic coupling. It is shown that the original time-independent Schr\"odin...
Supercurrent coupling destabilizes knot solitons
Supercurrent coupling destabilizes knot solitons Superconductivity
2011/7/27
Supercurrent coupling destabilizes knot solitons.
Coupling of gravity to matter, spectral action and cosmic topology
Coupling of gravity spectral action cosmic topology
2011/7/26
Abstract: We consider a model of modified gravity based on the spectral action functional, for a cosmic topology given by a spherical space form, and the associated slow-roll inflation scenario. We co...
Evaluation of High Order Terms for the Hubbard Model in the Strong-coupling Limit
for the Hubbard Model High Order Terms the Strong-coupling Limit Strongly Correlated Electrons
2011/7/28
Evaluation of High Order Terms for the Hubbard Model in the Strong-coupling Limit.
Evaluation of High Order Terms for the Hubbard Model in the Strong-coupling Limit
High Order Terms the Hubbard Model Strong-coupling
2011/9/15
The ground-state energy of the Hubbard model on a Bethe lattice with infinite connectivity at half filling is calculated for the insulating phase. Using Kohn抯 transformation to derive an effective Ham...
Integrable relativistic systems given by Hamiltonians with momentum-spin-orbit coupling
Integrable relativistic systems Hamiltonians momentum-spin-orbit coupling
2011/7/26
Abstract: In the paper we investigate the evolution of the relativistic particle (massive and massless) with spin defined by Hamiltonian containing the terms with momentum-spin-orbit coupling. We inte...
Ground states of semi-relativistic Pauli-Fierz and no-pair Hamiltonians in QED at critical Coulomb coupling
Existence of ground states exponential localization no-pair Hamiltonian quantum electrodynamics
2011/7/26
Abstract: We consider the semi-relativistic Pauli-Fierz Hamiltonian and a no-pair model of a hydrogen-like atom interacting with a quantized photon field at the respective critical values of the Coulo...
Running coupling constant of ten-flavor QCD with the Schrödinger functional method
Running coupling constant ten-flavor QCD Schrö dinger functional method
2011/1/14
Walking technicolor theory attempts to realize electroweak symmetry breaking as the spontaneous
chiral symmetry breakdown caused by the gauge dynamics with slowly varying gauge coupling constant and ...
Comparison of analytical and numerical methods and the effect of bath coupling on the quantum decoherence
comparison analytical and numerical methods quantum decoherence
2010/11/8
The dynamics of a qubit in a structured environment is investigated theoretically. One point of view of the model is the spin-boson model with a Lorentz shaped spectral density. An alternative view is...
Strong gate coupling of high-Q nanomechanical resonators
nanomechanics NEMS quantum limit detection dissipation
2010/11/24
The detection of mechanical vibrations near the quantum limit is a formidable challenge since the displacement becomes vanishingly small when the number of phonon quanta tends towards zero.
An intere...
Cladding mode coupling in highly localized fiber Bragg gratings: modal properties and transmission spectra
Cladding mode fiber Bragg gratings modal properties transmission spectra
2010/11/16
The spectral characteristics of a fiber Bragg grating (FBG) with a transversely inhomogeneous refractive index profile, differs con- siderably from that of a transversely uniform one. Transmission sp...
Running couplings and operator mixing in the gravitational corrections to coupling constants
Running couplings operator mixing gravitational corrections
2010/12/21
The use of a running coupling constant in renormalizable theories is well known, but the imple-
mentation of this idea for effective field theories with a dimensional coupling constant is in general ...
Time evolution of Wigner functions governed by bipartite Hamiltonian system with kinetic coupling
entangled Wigner operator Wigner function evolution entangled state representation
2010/6/30
For the bipartite Hamiltonian system with kinetic coupling, we derive time evolution equation of Wigner functions by virtue of the bipartite entangled state representation and entangled Wigner operato...