搜索结果: 1-15 共查到“理论物理学 universal”相关记录20条 . 查询时间(0.078 秒)
Exact, complete, and universal continuous-time worldline Monte Carlo approach to the statistics of discrete quantum systems
Quantum monte carlo procedures discretization discrete Hilbert space green's function
2014/12/22
We show how the worldline quantum Monte Carlo procedure, which usually relies on an artificial time discretization, can be formulated directly in continuous time, rendering the scheme exact. For an ar...
On the universal relations for the formfactors in 1D quantum liquids
universal relations 1D quantum liquids Mathematical Physics
2011/9/16
Abstract: For various one-dimensional quantum liquids in the framework of the Luttinger model (bosonization) we establish the relations between the coefficients before the power-law asymptotics of the...
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 Universal Arrow of Time III: Gravitation theory
The Universal Arrow of Time III Gravitation theory General Relativity and Quantum Cosmology
2011/8/1
Abstract: The paper is dealing with the analysis of general relativity theory (theory of gravitation) from the point of view of thermodynamic time arrow. Within this framework "informational paradox" ...
Universal Theorems for Total Energy of the Dynamics of Linearly Elastic Heterogeneous Solids
Energy Bounds Effective Dynamic Properties Metamaterials Homogenization
2011/7/28
Abstract: In this paper we consider a sample of a linearly elastic heterogeneous composite in elastodynamic equilibrium and present universal theorems which provide lower bounds for the total elastic ...
Universal Luttinger Liquid Relations in the 1D Hubbard Model
Luttinger Liquid Relations 1D Hubbard Model Strongly Correlated Electrons
2011/7/25
Abstract: We study the 1D extended Hubbard model with a weak repulsive short-range interaction in the non-half-filled band case, using non-perturbative Renormalization Group methods and Ward Identitie...
Partitioned quantum cellular automata are intrinsically universal
Partitioned quantum cellular automata intrinsically universal
2010/11/4
There have been several non-axiomatic approaches taken to define Quantum Cellular Automata (QCA). Partitioned QCA (PQCA) are the most canonical of these non-axiomatic definitions. In this work we show...
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...
Conductance through quantum wires with Levy-type disorder: universal statistics in anomalous quantum transport
Conductance through quantum wires Levy-type disorder anomalous quantum transport
2010/11/23
Random processes characterized by density probabilities with a long tail–L´evy-type
processes– have been found in very different phenomena and fields such as biology, economy, and physics.
Quantum Capacitance vs Chemical Potential Universal Curve and Interface Trap Parameter Extraction in Graphene Gated Structures
Quantum Capacitance hemical Potential Universal Curve Interface Trap Parameter Extraction Graphene Gated Structures
2010/11/25
We study influence of the interface traps unavoidably occurring at or near the interface
between the graphene sheets and the insulating substrate or top gate oxide on the
capacitance characteristics...
Universal phase transitions of B1 structured stoichiometric transition-metal carbides
Universal phase transitions
2010/11/23
High-pressure phase transitions of B1 structured transition-metal carbides (TiC, ZrC, HfC, VC, NbC, TaC) were systematically researched by ab initio calculations. It was found that these carbides unde...
Is there a physically universal cellular automaton or Hamiltonian?
physically universal cellular automaton Hamiltonian
2010/10/19
It is known that both quantum and classical cellular automata (CA) exist that are computationally universal in the sense that they can simulate, after appropriate initialization, any quantum or classi...
Universal quantum control of two-electron spin quantum bits using dynamic nuclear polarization
Universal quantum control two-electron spin quantum bits dynamic nuclear polarization
2010/10/27
One fundamental requirement for quantum computation is to perform universal manipulations
of quantum bits at rates much faster than the qubit’s rate of decoherence. Recently,
fast gate operations ha...
How much time does a tunneling wave packet spent in traversing a barrier? Quantum mechanical calculations result in zero time inside a barrier . In the nineties analogous tunneling experiments with mi...
Classical and Quantum Mechanics from the universal Poisson-Rinehart algebra of a manifold
Lie-Rinehart algebras Poisson algebras quantization
2010/4/8
The Lie and module (Rinehart) algebraic structure of vector fields of compact support over C infinity functions on a (connected) manifold M define a unique universal non-commutative Poisson * algebra....