Quantum information processing with Schrodinger cats

K Nemoto; A Gilchrist; WJ Munro; TC Ralph; GJ Milburn; SL Braunstein

doi:10.1117/12.497230

Quantum information processing with Schrodinger cats

K Nemoto, A Gilchrist, WJ Munro, TC Ralph, GJ Milburn, SL Braunstein

Computer Science

Research output: Contribution to conference › Paper › peer-review

Abstract

We investigate the utility of a superposition of coherent states for quantum information processing. We show that quantum computation circuits using coherent states as the logical qubits can be constructed from simple linear networks, conditional measurements and coherent superposition resource states. We can utilize such states and associated quantum circuits for two quantum metrology applications, one for weak force measurements and the second for precise phase estimation. We show in both cases that a sensitivity at the Heisenberg limit is achievable.

Original language	Undefined/Unknown
Pages	434-443
DOIs	https://doi.org/10.1117/12.497230
Publication status	Published - 2003
Event	1st international Symposium on Fluctuations and Noise - Santa Fe, New Mexico, United States Duration: 1 Jun 2003 → 4 Jun 2003

Conference

Conference	1st international Symposium on Fluctuations and Noise
Country/Territory	United States
City	Santa Fe, New Mexico
Period	1/06/03 → 4/06/03

Access to Document

10.1117/12.497230

Cite this

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title = "Quantum information processing with Schrodinger cats",

abstract = "We investigate the utility of a superposition of coherent states for quantum information processing. We show that quantum computation circuits using coherent states as the logical qubits can be constructed from simple linear networks, conditional measurements and coherent superposition resource states. We can utilize such states and associated quantum circuits for two quantum metrology applications, one for weak force measurements and the second for precise phase estimation. We show in both cases that a sensitivity at the Heisenberg limit is achievable.",

author = "K Nemoto and A Gilchrist and WJ Munro and TC Ralph and GJ Milburn and SL Braunstein",

year = "2003",

doi = "10.1117/12.497230",

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note = "1st international Symposium on Fluctuations and Noise ; Conference date: 01-06-2003 Through 04-06-2003",

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T1 - Quantum information processing with Schrodinger cats

AU - Nemoto, K

AU - Gilchrist, A

AU - Munro, WJ

AU - Ralph, TC

AU - Milburn, GJ

AU - Braunstein, SL

PY - 2003

Y1 - 2003

N2 - We investigate the utility of a superposition of coherent states for quantum information processing. We show that quantum computation circuits using coherent states as the logical qubits can be constructed from simple linear networks, conditional measurements and coherent superposition resource states. We can utilize such states and associated quantum circuits for two quantum metrology applications, one for weak force measurements and the second for precise phase estimation. We show in both cases that a sensitivity at the Heisenberg limit is achievable.

AB - We investigate the utility of a superposition of coherent states for quantum information processing. We show that quantum computation circuits using coherent states as the logical qubits can be constructed from simple linear networks, conditional measurements and coherent superposition resource states. We can utilize such states and associated quantum circuits for two quantum metrology applications, one for weak force measurements and the second for precise phase estimation. We show in both cases that a sensitivity at the Heisenberg limit is achievable.

U2 - 10.1117/12.497230

DO - 10.1117/12.497230

M3 - Paper

SP - 434

EP - 443

T2 - 1st international Symposium on Fluctuations and Noise

Y2 - 1 June 2003 through 4 June 2003

ER -