搜索结果: 1-15 共查到“量子力学 symmetry”相关记录17条 . 查询时间(0.111 秒)
Physicists and engineers have long been interested in creating new forms of matter, those not typically found in nature. Such materials might find use someday in, for example, novel computer chips. Be...
Bypassing the bandwidth theorem with PT symmetry
Bypassing the bandwidth theorem PT symmetry Classical Physics
2012/5/29
The beat time {\tau}_{fpt} associated with the energy transfer between two coupled oscillators is dictated by the bandwidth theorem which sets a lower bound {\tau}_{fpt}\sim 1/{\delta}{\omega}. We sho...
Universal routes to spontaneous PT-symmetry breaking in non-hermitian quantum systems
Universal routes spontaneous PT-symmetry non-hermitian quantum systems
2010/11/8
PT-symmetric systems can have a real spectrum even when their Hamiltonian is non-hermitian, but develop a complex spectrum when the degree of non-hermiticity increases. Here we utilize random-matrix t...
Bell diagonal states with maximal abelian symmetry
Bell diagonal maximal abelian symmetry Quantum Physics
2010/11/8
We provide a simple class of 2-qudit states for which one is able to formulate necessary and sufficient conditions for separability. As a byproduct we generalize well known construction provided by Ho...
Causal Symmetry and the Transactional Interpretation
the Transactional Interpretation Quantum Physics
2010/11/17
Cramer's (1986) transactional interpretation of quantum mechanics posits retrocausal influences in quantum processes in an attempt to alleviate some of the interpretational difficulties of the Copenh...
Symmetry energy of dense matter in holographic QCD
Symmetry energy of dense matter holographic QCD
2011/1/7
We study the nuclear symmetry energy of dense matter using holographic QCD. To this end, we
consider two flavor branes with equal quark masses in a D4/D6/D6 model. We find that at high
density the s...
Symmetry breaking orbital anisotropy on detwinned Ba(Fe1-xCox)2As2 above the spin density wave transition
Symmetry breaking orbital anisotropy detwinned Ba
2010/11/17
Nematicity, defined as broken rotational symmetry, has recently been observed in the competing phases in proximity to the superconducting phase in the high TC cuprates (1-2). Similarly, the new iron-b...
Dynamics of solutions of the Einstein equations with twisted Gowdy symmetry
Dynamics of solutions Einstein equations twisted Gowdy symmetry
2010/12/20
Some of the most interesting results on the global dynamics of solutions of the vacuum Einstein equations concern the Gowdy spacetimes whose spatial topology is that of a three-dimensional torus.
Rotational Symmetry of Classical Orbits, Arbitrary Quantization of Angular Momentum and the Role of Gauge Field in Two-Dimensional Space
Rotational Symmetry Classical Orbits Arbitrary Quantization Angular Momentum
2010/11/11
We study the quantum-classical correspondence in terms of coherent wave functions of a charged particle in two-dimensional central-scalar-potentials as well as the gauge field of a magnetic flux in t...
Generalized Spin and Pseudo-Spin Symmetry: Relativistic Extension of Supersymmetric Quantum Mechanics
Generalized Spin Pseudo-Spin Symmetry Relativistic Extension Supersymmetric Quantum Mechanics
2010/11/11
We consider the Dirac equation in 1+1 space-time dimension with vector, scalar and pseudo-scalar coupling. In the traditional spin (or pseudo-spin) symmetry, the difference between (or sum of) the sca...
Quantum phase with no translational symmetry and its potentiality for quantum communication
Quantum phase symmetry quantum communication
2010/4/16
By the method of terahertz photo-voltaic spectroscopy we have found a quantum phase that possesses neither continuous nor discrete translational symmetry. The phase is originated from quantum Hall sta...
Competition between symmetry breaking and onset of collapse in weakly coupled atomic condensates
symmetry breaking atomic condensates
2010/4/6
We analyze the symmetry breaking of matter-wave solitons in a pair of cigar-shaped traps coupled by tunneling of atoms. The model is based on a system of linearly coupled nonpolynomial Schr\"odinger e...
Matrix Elements in Fermion Dynamical Symmetry Model
fermion dynamical symmetry neutron-proton interaction
matrix element
2007/8/15
2002Vol.38No.6pp.703-708DOI:
Matrix Elements in Fermion Dynamical Symmetry Model
LIU Guang-Zhou and LIU Wei
Center of Theoretical Physics and Department of Physics,
Jili...
Dual Space Analyzing Based on Symmetry Properties for
Phonons fo Si Quantum Dot
phonon modes quantum dots dual space analyzing
2007/8/15
2002Vol.38No.1pp.91-98DOI:
Dual Space Analyzing Based on Symmetry Properties for
Phonons fo Si Quantum Dot
QIN Guo-Yi,1 REN Shang-Fen,2 and ZHANG Zhi-Yong3
1 Department ...
Fermion Determinant with Dynamical Chiral Symmetry Breaking
determinant dynamical symmetry breaking heat kernel
2007/8/15
2002Vol.38No.2pp.185-188DOI:
Fermion Determinant with Dynamical Chiral Symmetry Breaking
LU Qin,1 YANG Hua,1,2 and WANG Qing1,3
1 Department of Physics, Tsinghua Univers...