Results 41 to 50 of about 183,446 (320)

Generalization of Classical Statistical Mechanics to Quantum Mechanics and Stable Property of Condensed Matter

, 2005
Classical statistical average values are generally generalized to average values of quantum mechanics, it is discovered that quantum mechanics is direct generalization of classical statistical mechanics, and we generally deduce both a new general ...
Anandan J., Anastopoulos C., Ballentine L. E., Curtright T., Eisenberg E., F. C. MA, Halliwell J. J., Harrison W. A., Holstein B. R., Isidro J. M., Jorgensen P. E. T., Liu Q. H., Marnelius R., N. ZHANG, Oh P., Prezhdo O. V., Schiff L. I., Tsiper E. V., Y. C. HUANG   +18 more
core   +1 more source

Equilibration of quantum gases

New Journal of Physics, 2016
Finding equilibration times is a major unsolved problem in physics with few analytical results. Here we look at equilibration times for quantum gases of bosons and fermions in the regime of negligibly weak interactions, a setting which not only includes ...
Terry Farrelly
doaj   +1 more source

Quantum Chaos and Statistical Mechanics

, 1994
We briefly review the well known connection between classical chaos and classical statistical mechanics, and the recently discovered connection between quantum chaos and quantum statistical mechanics.Comment: talk given at the Conference on Fundamental ...
Berry, Berry, Berry, Sinai, Srednicki
core   +1 more source

Quantum mechanics as an approximation of statistical mechanics for classical fields

, 2005
We show that, in spite of a rather common opinion, quantum mechanics can be represented as an approximation of classical statistical mechanics. The approximation under consideration is based on the ordinary Taylor expansion of physical variables.
Khrennikov, Andrei
core   +4 more sources

Subdynamics as a mechanism for objective description [PDF]

, 1999
The relationship between microsystems and macrosystems is considered in the context of quantum field formulation of statistical mechanics: it is argued that problems on foundations of quantum mechanics can be solved relying on this relationship.
Bassano Vacchini, Bell J., Berchielli A., Englert B.-G., Giulini D., Lanz O., Ludovico Lanz, Ludwig G., Olaf Melsheimer, Zubarev D. N.   +9 more
core   +3 more sources

STATISTICAL MECHANICS AND QUANTUM COSMOLOGY [PDF]

, 1991
Statistical mechanical concepts and processes such as decoherence, correlation, and dissipation can prove to be of basic importance to understanding some fundamental issues of quantum cosmology and theoretical physics such as the choice of initial states, quantum to classical transition and the emergence of time.
openaire   +2 more sources

Quantum Monte Carlo Methods in Statistical Mechanics [PDF]

, 1999
This paper deals with the optimization of trial states for the computation of dominant eigenvalues of operators and very large matrices. In addition to preliminary results for the energy spectrum of van der Waals clusters, we review results of the ...
Melik-Alaverdian, Vilen, Nightingale, M. P.   +1 more
core   +3 more sources

Challenges during Flash Lamp Annealing of Aerosol‐Deposited Barium Titanate Films

Advanced Engineering Materials, EarlyView.
Aerosol deposition is used to rapidly deposit barium titanate films with thicknesses ranging from 2 to 16 μm at room temperature, eliminating the need for further densification. However, to recover the electromechanical properties, annealing is required, which limits the usage of temperature‐sensitive substrates.
Michel Kuhfuß, Juliette Cardoletti, Udo R. Eckstein, Shaoxiong Xie, Alexander Martin, Ken‐ichi Kakimoto, Sebastjan Glinšek, Kyle G. Webber   +7 more
wiley   +1 more source

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

Advanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu, Jochen Vanderspikken, Paola Mantegazza, Stefania Moro, Mouna Hamid, Sigurd Mertens, Niko Van den Brande, Laurence Lutsen, Vincent Lemaur, David Beljonne, Giovanni Costantini, Koen Vandewal, Bruno Van Mele, Wouter Maes, Bart Goderis   +14 more
wiley   +1 more source

Speed limits to fluctuation dynamics

Communications Physics
Fluctuation dynamics of an experimentally measured observable offer a primary signal for nonequilibrium systems, along with dynamics of the mean. While universal speed limits for the mean have actively been studied recently, constraints for the speed of ...
Ryusuke Hamazaki
doaj   +1 more source