scholarly journals On the Husimi Version of the Classical Limit of Quantum Correlation Functions

2020 ◽  
Vol 5 (1) ◽  
pp. 3 ◽  
Author(s):  
Sreeja Loho Choudhury ◽  
Frank Großmann
Keyword(s):  
Coherent State ◽  
Correlation Functions ◽  
Classical Limit ◽  
Quantum Correlation ◽  
Semiclassical Theory ◽  
Morse Oscillator ◽  
Survival Probabilities ◽  
Numerical Comparisons ◽  
Harmonic Degree ◽  
Full Quantum

We extend the Husimi (coherent state) based version of linearized semiclassical theories for the calculation of correlation functions to the case of survival probabilities. This is a case that could be dealt with before only by use of the Wigner version of linearized semiclassical theory. Numerical comparisons of the Husimi and the Wigner case with full quantum results as well as with full semiclassical ones will be given for the revival dynamics in a Morse oscillator with and without coupling to an additional harmonic degree of freedom.

scholarly journals Quantum-classical limit of quantum correlation functions

2004 ◽  
Vol 121 (16) ◽  
pp. 7565 ◽  
Author(s):  
Alessandro Sergi ◽  
Raymond Kapral
Keyword(s):  
Correlation Functions ◽  
Classical Limit ◽  
Quantum Correlation

scholarly journals QUANTUM GLOBAL STRINGS AND THEIR CORRELATION FUNCTIONS

2000 ◽  
Vol 15 (15) ◽  
pp. 2225-2235 ◽  
Author(s):  
H. FORT ◽  
E. C. MARINO
Keyword(s):  
Correlation Function ◽  
Energy Density ◽  
Correlation Functions ◽  
Potential Application ◽  
Cosmic Strings ◽  
Condensed Matter ◽  
Higgs Field ◽  
Basic Field ◽  
Dual Formulation ◽  
Full Quantum

A full quantum description of global vortex strings is presented in the framework of a pure Higgs system with a broken global U(1) symmetry in 3+1D. An explicit expression for the string creation operator is obtained, both in terms of the Higgs field and in the dual formulation where a Kalb–Ramond antisymmetric tensor gauge field is employed as the basic field. The quantum string correlation function is evaluated and from this, the string energy density is obtained. Potential application in cosmology (cosmic strings) and condensed matter (vortices in superfluids) are discussed.

scholarly journals SU3 coherent state operators and invariant correlation functions and their quantum group counterparts

1995 ◽  
Vol 36 (4) ◽  
pp. 2030-2052 ◽  
Author(s):  
Hagop Sazdjian ◽  
Yassen S. Stanev ◽  
Ivan T. Todorov
Keyword(s):  
Coherent State ◽  
Quantum Group ◽  
Correlation Functions
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