Near-optimal two-mode spin squeezing via feedback

Dominic W. Berry; Barry C. Sanders

doi:10.1103/PhysRevA.66.012313

Near-optimal two-mode spin squeezing via feedback

Dominic W. Berry^*, Barry C. Sanders

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

5 Downloads (Pure)

Abstract

We propose a feedback scheme for the production of two-mode spin squeezing. We determine a general expression for the optimal feedback, which is also applicable to the case of single-mode spin squeezing. The two-mode spin squeezed states obtained via this feedback are optimal for j=1/2 and are very close to optimal for j>1/2. In addition, the master equation suggests a Hamiltonian that would produce two-mode spin squeezing without feedback, and is analogous to the two-axis countertwisting Hamiltonian in the single-mode case.

Original language	English
Article number	012313
Pages (from-to)	012313-1-012313-10
Number of pages	10
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	66
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevA.66.012313
Publication status	Published - 2002

Bibliographical note

Access to Document

10.1103/PhysRevA.66.012313

Publisher version (open access)Final published version, 128 KBLicence: Unspecified

Cite this

@article{97bfadc460f64eca9cb955ac55afae7e,

title = "Near-optimal two-mode spin squeezing via feedback",

abstract = "We propose a feedback scheme for the production of two-mode spin squeezing. We determine a general expression for the optimal feedback, which is also applicable to the case of single-mode spin squeezing. The two-mode spin squeezed states obtained via this feedback are optimal for j=1/2 and are very close to optimal for j>1/2. In addition, the master equation suggests a Hamiltonian that would produce two-mode spin squeezing without feedback, and is analogous to the two-axis countertwisting Hamiltonian in the single-mode case.",

author = "Berry, {Dominic W.} and Sanders, {Barry C.}",

year = "2002",

doi = "10.1103/PhysRevA.66.012313",

language = "English",

volume = "66",

pages = "012313--1--012313--10",

journal = "Physical Review A: covering atomic, molecular, and optical physics and quantum information",

issn = "2469-9926",

publisher = "American Physical Society",

number = "1",

}

TY - JOUR

T1 - Near-optimal two-mode spin squeezing via feedback

AU - Berry, Dominic W.

AU - Sanders, Barry C.

PY - 2002

Y1 - 2002

N2 - We propose a feedback scheme for the production of two-mode spin squeezing. We determine a general expression for the optimal feedback, which is also applicable to the case of single-mode spin squeezing. The two-mode spin squeezed states obtained via this feedback are optimal for j=1/2 and are very close to optimal for j>1/2. In addition, the master equation suggests a Hamiltonian that would produce two-mode spin squeezing without feedback, and is analogous to the two-axis countertwisting Hamiltonian in the single-mode case.

AB - We propose a feedback scheme for the production of two-mode spin squeezing. We determine a general expression for the optimal feedback, which is also applicable to the case of single-mode spin squeezing. The two-mode spin squeezed states obtained via this feedback are optimal for j=1/2 and are very close to optimal for j>1/2. In addition, the master equation suggests a Hamiltonian that would produce two-mode spin squeezing without feedback, and is analogous to the two-axis countertwisting Hamiltonian in the single-mode case.

UR - http://www.scopus.com/inward/record.url?scp=0036656279&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.66.012313

DO - 10.1103/PhysRevA.66.012313

M3 - Article

AN - SCOPUS:0036656279

VL - 66

SP - 012313-1-012313-10

JO - Physical Review A: covering atomic, molecular, and optical physics and quantum information

JF - Physical Review A: covering atomic, molecular, and optical physics and quantum information

SN - 2469-9926

IS - 1

M1 - 012313

ER -

Near-optimal two-mode spin squeezing via feedback

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this