搜索结果: 1-15 共查到“理论物理学 entropy”相关记录46条 . 查询时间(0.062 秒)
By precisely measuring the entropy of a cerium copper gold alloy with baffling electronic properties cooled to nearly absolute zero, physicists in Germany and the United States have gleaned new eviden...
We present an analytical study on the resilience of topological order after a quantum quench. The system is initially prepared in the ground state of the toric-code model, and then quenched by switchi...
A comment on the relation between diffraction and entropy
relation between diffraction and entropy Mathematical Physics
2012/5/2
Diffraction methods are used to detect atomic order in solids. While uniquely ergodic systems with pure point diffraction have zero entropy, the relation between diffraction and entropy is not as stra...
The Smooth Entropy Formalism on von Neumann Algebras
Smooth Entropy Formalism von Neumann Algebras Quantum Physics
2011/7/27
Abstract: We discuss quantum information theoretical concepts on von Neumann algebras and lift the smooth entropy formalism to the most general quantum setting. For the smooth min- and max-entropies w...
On some special cases of the Entropy Photon-Number Inequality
the Entropy Photon-Number Inequality Quantum Physics Information Theory
2011/7/12
Abstract: We show that the Entropy Photon-Number Inequality (EPnI) holds where one of the input states is the vacuum state and for several candidates of the other input state that includes the cases w...
Infinitely many constrained inequalities for the von Neumann entropy
von Neumann entropy Quantum Physics
2011/7/4
Abstract: We exhibit infinitely many new, constrained inequalities for the von Neumann entropy, and show that they are independent of each other and the known inequalities obeyed by the von Neumann en...
Propagation of Localization Optimal Entropy Production and Convergence rates for the Central Limit Theorem
Localization Optimal Entropy Production Convergence rates the Central Limit Theorem
2011/6/11
Propagation of Localization Optimal Entropy Production and Convergence rates for the Central Limit Theorem.
A Characterization of Entropy in Terms of Information Loss
Shannon entropy Tsallis entropy information theory measure-preserving function
2011/6/9
Abstract: There are numerous characterizations of Shannon entropy and Tsallis entropy as measures of information obeying certain properties. Using work by Faddeev and Furuichi, we derive a very simple...
Among various scenarios to explain the acceleration of the universe expansion, the holographic dark energy (HDE) model has got a lot of enthusiasm recently. In the derivation of holographic energy de...
Black Hole Entropy, Loop Gravity, and Polymer Physics
Black Hole Entropy Loop Gravity d Polymer Physics
2010/11/25
Loop Gravity provides a microscopic derivation of Black Hole entropy. In this paper, I show
that the microstates counted admit a semiclassical description in terms of shapes of a tessellated horizon....
A Simplified, Bohr Quantum Theoretical Derivation of the Unruh Temperature, Entropy, and Evaporation
General Relativity and Quantum Cosmology(gr-qc) Quantum Physics(quant-ph)
2010/11/9
In this work we reproduce Unruh temperature for a spherical physical system using a simplified rule, very similar to Bohr angular momentum quantization postulate interpreted via de Broglie relation, a...
Min-entropy and quantum key distribution: non-zero key rates for "small" numbers of signals
min-entropy quantum key distribution non-zero key rates
2010/11/8
We calculate an achievable secret key rate for quantum key distribution with a finite number of signals, by evaluating the min-entropy explicitly. The min-entropy can be expressed in terms of the gues...
Entropy-driven enhanced self-diffusion in confined reentrant supernematics
Entropy-driven enhanced self-diffusion confined reentrant supernematics
2010/11/2
We present a molecular dynamics study of reentrant nematic phases using the Gay-Berne-Kihara
model of a liquid crystal in nanoconfinement. At densities above those characteristic of smectic A phases,...
Entropy production and equilibration in Yang-Mills quantum mechanics
Entropy production equilibration Yang-Mills quantum mechanics
2010/11/1
The Husimi distribution provides for a coarse grained representation of the phase space distribution of a quantum system.
Non-equilibrium steady states : maximization of the Shannon entropy associated to the distribution of dynamical trajectories in the presence of constraints
Non-equilibrium steady states Shannon entropy distribution of dynamical trajectories
2010/11/1
Filyokov and Karpov [Inzhenerno-Fizicheskii Zhurnal 13, 624 (1967)] have proposed a theory of
non-equilibrium steady states in direct analogy with the theory of equilibrium states : the principle is ...