Macroscopicity in an optomechanical matter-wave interferometer

被引：2

作者：

Xuereb, Andre ^{[1
,2
]}

Ulbricht, Hendrik ^{[3
]}

Paternostro, Mauro ^{[1
]}

机构：

[1] Queens Univ Belfast, Sch Math & Phys, Ctr Theoret Atom Mol & Opt Phys, Belfast BT7 1NN, Antrim, North Ireland

[2] Univ Malta, Dept Phys, MSD-2080 Msida, Malta

[3] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

来源：

OPTICS COMMUNICATIONS | 2015年 / 337卷

基金：

英国工程与自然科学研究理事会;

关键词：

Optomechanics; Matter-wave interferometry; Macroscopicity; Decoherence;

D O I：

10.1016/j.optcom.2014.06.006

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We analyse a proposal that we have recently put forward for an interface between matter-wave and optomechanical technologies from the perspective of macroscopic quaatumness. In particular, by making use of a measure of macroscopicity in quantum superpositions that is particularly well suited for continuous variables systems, we demonstrate the existence of working points for our interface at which a quantum mechanical superposition of genuinely mesoscopic states is achieved. Our proposal thus holds the potential to affirm itself as a viable atom-to-mechanics transducer of quantum coherences. (C) 2014 Elsevier B.V. All rights reserved,

引用

页码：53 / 56

页数：4

共 8 条

[1]

[Anonymous], 1980, Prog. Theor. Phys. Suppl.

[2] A size criterion for macroscopic superposition states [J].

Björk, G ;

Mana, PGL .

JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS, 2004, 6 (11) :429-436

[3] Signatures for generalized macroscopic superpositions [J].

Cavalcanti, E. G. ;

Reid, M. D. .

PHYSICAL REVIEW LETTERS, 2006, 97 (17)

[4] Effective size of certain macroscopic quantum superpositions -: art. no. 210402 [J].

Dür, W ;

Simon, C ;

Cirac, JI .

PHYSICAL REVIEW LETTERS, 2002, 89 (21)

[5] Quantification of Macroscopic Quantum Superpositions within Phase Space [J].

Lee, Chang-Woo ;

Jeong, Hyunseok .

PHYSICAL REVIEW LETTERS, 2011, 106 (22)

[6] Measuring the size of a quantum superposition of many-body states [J].

Marquardt, Florian ;

Abel, Benjamin ;

von Delft, Jan .

PHYSICAL REVIEW A, 2008, 78 (01)

[7]

Walls D.F., 2010, Quantum Optics

[8] Optomechanical interface for probing matter-wave coherence [J].

Xuereb, Andre ;

Ulbricht, Hendrik ;

Paternostro, Mauro .

SCIENTIFIC REPORTS, 2013, 3

← 1 →