user

Construction of quantum states by special superpositions of coherent states

被引：7
|
作者：
Adam, P. [1 ,2 ]
Molnar, E. [2 ]
Mogyorosi, G. [2 ]
Varga, A. [2 ]
Mechler, M. [3 ]
Janszky, J. [1 ,2 ]
机构：
[1] Hungarian Acad Sci, Inst Solid State Phys & Opt, Wigner Res Ctr Phys, H-1525 Budapest, Hungary
[2] Univ Pecs, Inst Phys, H-7624 Pecs, Hungary
[3] MTA PTE High Field Terahertz Res Grp, H-7624 Pecs, Hungary
来源：
PHYSICA SCRIPTA | 2015年 / 90卷 / 07期
基金：
匈牙利科学研究基金会;
关键词：
coherent-state superpositions; quantum state engineering; nonclassical states; SCHRODINGER-CAT STATES; FOCK STATES; SQUEEZED STATES; ELECTROMAGNETIC-FIELD; TRAVELING FIELDS; RADIATION-FIELD; TRAPPED ION; SINGLE-ATOM; GENERATION; CAVITY;
D O I：
10.1088/0031-8949/90/7/074021
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We consider the optimal approximation of certain quantum states of a harmonic oscillator with the superposition of a finite number of coherent states in phase space placed either on an ellipse or on a certain lattice. These scenarios are currently experimentally feasible. The parameters of the ellipse and the lattice and the coefficients of the constituent coherent states are optimized numerically, via a genetic algorithm, in order to obtain the best approximation. It is found that for certain quantum states the obtained approximation is better than the ones known from the literature thus far.
引用
收藏
页数：11
相关论文
共 50 条
  • [1] Construction of quantum states of the radiation field by discrete coherent-state superpositions
    Szabo, S
    Adam, P
    Janszky, J
    Domokos, P
    [J]. PHYSICAL REVIEW A, 1996, 53 (04): : 2698 - 2710
  • [2] Construction of quantum states of the radiation field by discrete coherent-state superpositions
    Szabo, S.
    Adam, P.
    Janszky, J.
    Domokos, P.
    [J]. Physical Review A. Atomic, Molecular, and Optical Physics, 1996, 53 (04):
  • [3] Effects of squeezing on quantum nonlocality of superpositions of coherent states
    Lee, Chang-Woo
    Jeong, Hyunseok
    [J]. PHYSICAL REVIEW A, 2009, 80 (05):
  • [4] AMPLIFICATION OF MULTICOMPONENT SUPERPOSITIONS OF COHERENT STATES OF LIGHT WITH QUANTUM AMPLIFIERS
    LEE, KS
    KIM, MS
    BUZEK, V
    [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1994, 11 (06) : 1118 - 1129
  • [5] Nonclassical properties and generation of quantum superpositions of two coherent states
    Napoli, A
    Messina, A
    [J]. JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS, 2000, 2 (03) : 282 - 286
  • [6] Unitary Representations of Quantum Superpositions of Two Coherent States and Beyond
    Messina, Antonino
    Draganescu, Gheorghe
    [J]. OPEN SYSTEMS & INFORMATION DYNAMICS, 2013, 20 (03):
  • [7] Quantum superpositions of two equal-intensity coherent states
    Napoli, A
    Messina, A
    [J]. NUCLEAR AND CONDENSED MATTER PHYSICS, 2000, 513 : 190 - 193
  • [8] COHERENT STATES, SUPERPOSITIONS OF COHERENT STATES AND UNCERTAINTY RELATIONS ON A MOBIUS STRIP
    Prudencio, Thiago
    Cirilo-Lombardo, Diego Julio
    [J]. MODERN PHYSICS LETTERS A, 2013, 28 (15)
  • [9] Generation of superpositions of coherent states on a circle
    F. Plastina
    F. Piperno
    [J]. The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics, 1999, 5 : 411 - 415
  • [10] SUPERPOSITIONS OF COHERENT STATES - SQUEEZING AND DISSIPATION
    BUZEK, V
    VIDIELLABARRANCO, A
    KNIGHT, PL
    [J]. PHYSICAL REVIEW A, 1992, 45 (09): : 6570 - 6585
12345