Pointer basis induced by collisional decoherence

被引：17

作者：

Busse, Marc ^{[1
]}

Hornberger, Klaus ^{[1
,2
]}

机构：

[1] Univ Munich, Arnold Sommerfeld Ctr Theoret Phys, D-80333 Munich, Germany

[2] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL | 2010年 / 43卷 / 01期

关键词：

MASTER EQUATION; QUANTUM OPTICS; SYSTEMS; REPRESENTATION; DIFFUSION; REDUCTION; EMERGENCE; MODELS; STATES;

D O I：

10.1088/1751-8113/43/1/015303

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the emergence and dynamics of pointer states in the motion of a quantum test particle affected by collisional decoherence. These environmentally distinguished states are shown to be exponentially localized solitonic wavefunctions which evolve according to the classical equations of motion. We explain their formation using the orthogonal unraveling of the master equation, and we demonstrate that the statistical weights of the arising mixture are given by projections of the initial state onto the pointer basis.

引用

页数：24

共 35 条

[1] Dynamical reduction models [J].

Bassi, A ;

Ghirardi, GC .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2003, 379 (5-6) :257-426

[2]

Breuer H.P., 2007, THEORY OPEN QUANTUM, DOI DOI 10.1093/ACPROF:OSO/9780199213900.001.0001

[3] Emergence of pointer states in a non-perturbative environment [J].

Busse, Marc ;

Hornberger, Klaus .

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2009, 42 (36)

[4]

Carmichael H., 1993, OPEN SYSTEMS APPROAC

[5] STOCHASTIC PURE STATE REPRESENTATION FOR OPEN QUANTUM-SYSTEMS [J].

DIOSI, L .

PHYSICS LETTERS A, 1986, 114 (8-9) :451-454

[6] Robustness and diffusion of pointer states [J].

Diósi, L ;

Kiefer, C .

PHYSICAL REVIEW LETTERS, 2000, 85 (17) :3552-3555

[7] QUANTUM STOCHASTIC-PROCESSES AS MODELS FOR STATE-VECTOR REDUCTION [J].

DIOSI, L .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1988, 21 (13) :2885-2898

[8] ORTHOGONAL JUMPS OF THE WAVEFUNCTION IN WHITE-NOISE POTENTIALS [J].

DIOSI, L .

PHYSICS LETTERS A, 1985, 112 (6-7) :288-292

[9] Towards quantum entanglement in nanoelectromechanical devices [J].

Eisert, J ;

Plenio, MB ;

Bose, S ;

Hartley, J .

PHYSICAL REVIEW LETTERS, 2004, 93 (19) :190402-1

[10] Exact decoherence to pointer states in free open quantum systems is universal [J].

Eisert, J .

PHYSICAL REVIEW LETTERS, 2004, 92 (21) :210401-1

← 1 2 3 4 →