Results 251 to 260 of about 18,349,524 (294)
Some of the next articles are maybe not open access.
Coherence of Superposition States*
Communications in Theoretical Physics, 2019Abstract We find tight upper bound on the coherence of a superposition of two states in terms of the coherence of the two states constituting the superposition with l 1 -norm of coherence.
Yuwen, Shan-Shan +2 more
openaire +1 more source
International Journal of Theoretical Physics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Anas Othman
exaly +3 more sources
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Anas Othman
exaly +3 more sources
Physical Review A, 1996
We consider a class of nonlinear coherent states, which are right-hand eigenstates of the product of the boson annihilation operator and a nonlinear function of the number operator. Such states may appear as stationary states of the center-of-mass motion of a trapped and bichromatically laser-driven ion far from the Lamb-Dicke regime. Besides coherence
, de Matos Filho RL, , Vogel
openaire +2 more sources
We consider a class of nonlinear coherent states, which are right-hand eigenstates of the product of the boson annihilation operator and a nonlinear function of the number operator. Such states may appear as stationary states of the center-of-mass motion of a trapped and bichromatically laser-driven ion far from the Lamb-Dicke regime. Besides coherence
, de Matos Filho RL, , Vogel
openaire +2 more sources
Journal of Physics A: Mathematical and General, 1985
The definition of coherent states for an arbitrary Lie group G is reviewed in the first two sections, and the original Glauber coherent states are exhibited as the particular case in which G is the Weyl group. The question of how the formalism is altered under perturbations of the Hamiltonian is addressed in section 3.
G. D'ARIANO +2 more
openaire +4 more sources
The definition of coherent states for an arbitrary Lie group G is reviewed in the first two sections, and the original Glauber coherent states are exhibited as the particular case in which G is the Weyl group. The question of how the formalism is altered under perturbations of the Hamiltonian is addressed in section 3.
G. D'ARIANO +2 more
openaire +4 more sources
Coherent and thermal coherent state
Journal of Mathematical Physics, 1989The characterization of coherent states as the quantum states that split into two uncorrelated beams is considered. The characterization leads to the study of coherent states at finite temperature—thermal coherent states (TCS’s). These TCS’s are defined within the formalism of thermo field dynamics (TFD).
Yoshiya Yamanaka, M Revzen
exaly +2 more sources
International Journal of Modern Physics B, 2001
We construct explicit families of coherent states whose parametrization permits an arbitrarily small deviation from conventional coherent states. They possess the resolution of unity with a positive weight function given as the solution of a Stieltjes power-moment problem, with moments analytically expressible through Tricomi's confluent ...
Sixdeniers, J.-M. +2 more
openaire +2 more sources
We construct explicit families of coherent states whose parametrization permits an arbitrarily small deviation from conventional coherent states. They possess the resolution of unity with a positive weight function given as the solution of a Stieltjes power-moment problem, with moments analytically expressible through Tricomi's confluent ...
Sixdeniers, J.-M. +2 more
openaire +2 more sources
Generalized coherent states and generalized squeezed coherent states
Physical Review D, 1985Roy and Virendra Singh showed that the harmonic oscillator possesses an infinite string of exact shape-preserving coherent wave-packet states \ensuremath{\Vert}n,\ensuremath{\alpha}〉 having classical motion. In this paper it is shown that the states \ensuremath{\Vert}n,\ensuremath{\alpha}〉 could be obtained from the coherent state \ensuremath{\Vert ...
openaire +2 more sources