English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Dissipative versus Conditional Generation of Gaussian Entanglement and Spin Squeezing

Vasilyev, D. V., Muschik, C. A., & Hammerer, K. (2013). Dissipative versus Conditional Generation of Gaussian Entanglement and Spin Squeezing. Physical Review A, 87: 053820. doi:10.1103/PhysRevA.87.053820.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-15C7-A Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-15C8-8
Genre: Journal Article

Files

show Files
hide Files
:
1303.5888.pdf (Preprint), 605KB
Name:
1303.5888.pdf
Description:
File downloaded from arXiv at 2014-01-29 14:13
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
:
PRA87_053820.pdf (Any fulltext), 378KB
Name:
PRA87_053820.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Vasilyev, Denis V., Author
Muschik, Christine A., Author
Hammerer, Klemens1, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

Content

show
hide
Free keywords: Quantum Physics, quant-ph
 Abstract: Spin squeezing of collective atomic spins can be achieved conditionally via probing with light and subsequent homodyne detection, as is done in a Quantum Nondemolition measurement. Recently it has been shown that squeezing can also be created unconditionally by a properly designed dissipative dynamics. We compare the two approaches in a Gaussian description, and optimize over all Gaussian light-matter interactions. We find that in the optimal unconditional scheme based on dissipation the level of squeezing scales as $d^{-1/2}$. In contrast, the optimal conditional scheme based on measurement of light -- which in fact is not a Quantum Nondemolition measurement -- can provide squeezing which scales as $d^{-1}$ in the most relevant regime of moderate optical depths. Our results apply directly also to the creation of entanglement in the form of non-local spin squeezing of two atomic ensembles.

Details

show
hide
Language(s):
 Dates: 2013-03-232013-05-282013
 Publication Status: Published in print
 Pages: 9 pages, 7 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1303.5888
DOI: 10.1103/PhysRevA.87.053820
URI: http://arxiv.org/abs/1303.5888
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review A
  Other : Phys. Rev. A
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: New York, NY : American Physical Society
Pages: - Volume / Issue: 87 Sequence Number: 053820 Start / End Page: - Identifier: ISSN: 1050-2947
CoNE: /journals/resource/954925225012_2