Cited by 3,858Quantum Information and CryptographyQuantum optics and atomic interactionsQuantum Mechanics and Applications

Quantum information with continuous variables

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Braunstein, Samuel L., van Loock, Peter·2005·Reviews of Modern Physics

Abstract

Quantum information is a rapidly advancing area of interdisciplinary research. It may lead to real-world applications for communication and computation unavailable without the exploitation of quantum properties such as nonorthogonality or entanglement. This article reviews the progress in quantum information based on continuous quantum variables, with emphasis on quantum optical implementations in terms of the quadrature amplitudes of the electromagnetic field.

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Crossref · 10.1103/revmodphys.77.513

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282 of 282 references verified0 citation errors · 0 not checkable

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  • In quantum optics, the amplitude and phase quadratures of the vacuum state are represented by a pair of non-commuting operators (X and P with [X,P]=i/2), which cannot be determined simultaneously with an arbitrarily high precision.

    “In quantum optics, the amplitude and phase quadratures of the vacuum state are represented by a pair of non-commuting operators ( X and P with [ X, P ] = i/ 2), which cannot be determined simultaneously with an arbitrarily high precision 33 -i.e., 〈 ( Δ X ) 2 〉 × 〈 ( Δ P ) 2 〉 ⩾ 1 / 16, with Δ O de fi ned by O -〈 O 〉 and 〈 O 〉 denoting the average of O .”

    From Quantum random number generation (2016) · cites this paper as [33]

  • Quantum teleportation of continuous-variable states has the advantage that full Bell-state analysis is possible with linear optics within the experimental bandwidth, but it is hard to extend to long-distance because squeezed-state entanglement degrades during longer-distance transfers.

    “Quantum teleportation of continuous-variable states (Furusawa et al., 1998;Braunstein and van Loock, 2005) has the advantage that full Bell-state analysis is possible with linear optics (within the experimental bandwidth).Yet, it is hard to extend to a long-distance case.The unavoidable degradation of squeezed-states sets in during longer-distance transfers.This consequently leads to a rapid”

    From Multiphoton entanglement and interferometry (2012) · cites this paper as Braunstein and van Loock, 2005

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Authors
Braunstein, S. L., & van Loock, P.
Affiliations
University of York (GB)
Venue
Reviews of Modern Physics
Published
2005-06-29
Volume
77
Issue
2
Pages
513-577
ISSN
  • 0034-6861 (ISSN-L)
  • 1539-0756
OpenAlex
W2142739935
Cited by
3,858
References
282
Citations by year
2026: 177 · 2025: 275 · 2024: 229 · 2023: 244 · 2022: 252 · 2021: 250 · 2020: 230 · 2019: 232 · 2018: 193 · 2017: 175 · 2016: 185 · 2015: 171 · 2014: 138 · 2013: 146 · 2012: 137
FWCI
137.86
Type
journal article
Language
en
Open access
Locations
  • Reviews of Modern Physics (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
  • Max Planck Digital Library (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum optics and atomic interactions
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
Keywords
continuous-variable quantum information, quantum optics, electromagnetic fields, entanglement, non-orthogonality, quantum communication, quantum computing

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