Cavity dark states for quantum computing

M. S. Shahriar; J. A. Bowers; B. Demsky; P. S. Bhatia; S. Lloyd; P. R. Hemmer; A. E. Craig

doi:10.1016/S0030-4018(01)01354-2

Cavity dark states for quantum computing

M. S. Shahriar, J. A. Bowers, B. Demsky, P. S. Bhatia^*, S. Lloyd, P. R. Hemmer, A. E. Craig

^*Corresponding author for this work

Electrical and Computer Engineering

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

23 Scopus citations

Abstract

We show that two multilevel atoms can perform quantum communication with each other via interaction with an enclosing cavity containing no photons. The physical mechanism is analogous to the way populations can be exchanged between the extremal states in a three level system via adiabatic following, without populating the intermediate states. The combined system of the two atoms, the cavity, and two laser beams contains a dark state corresponding to the cavity in its ground state. Using a counter-intuitive pulse sequence, quantum information can be transferred adiabatically from one atom to the other via this cavity dark state. This process can be used to circumvent the effect of cavity decay in a quantum computer formed by cavity interconnected qubits.

Original language	English (US)
Pages (from-to)	411-417
Number of pages	7
Journal	Optics Communications
Volume	195
Issue number	5-6
DOIs	https://doi.org/10.1016/S0030-4018(01)01354-2
State	Published - Aug 15 2001

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/S0030-4018(01)01354-2

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title = "Cavity dark states for quantum computing",

abstract = "We show that two multilevel atoms can perform quantum communication with each other via interaction with an enclosing cavity containing no photons. The physical mechanism is analogous to the way populations can be exchanged between the extremal states in a three level system via adiabatic following, without populating the intermediate states. The combined system of the two atoms, the cavity, and two laser beams contains a dark state corresponding to the cavity in its ground state. Using a counter-intuitive pulse sequence, quantum information can be transferred adiabatically from one atom to the other via this cavity dark state. This process can be used to circumvent the effect of cavity decay in a quantum computer formed by cavity interconnected qubits.",

author = "Shahriar, {M. S.} and Bowers, {J. A.} and B. Demsky and Bhatia, {P. S.} and S. Lloyd and Hemmer, {P. R.} and Craig, {A. E.}",

note = "Funding Information: The authors acknowledge the contribution of S. Ezekiel of the Research Laboratory of Electronics at the Massachusetts Institute of Technology. This work was supported by AFOSR grant #F49620-98-1-0313 and ARO grant # DAAG55-98-1-0375. ",

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AU - Shahriar, M. S.

AU - Bowers, J. A.

AU - Demsky, B.

AU - Bhatia, P. S.

AU - Lloyd, S.

AU - Hemmer, P. R.

AU - Craig, A. E.

N1 - Funding Information: The authors acknowledge the contribution of S. Ezekiel of the Research Laboratory of Electronics at the Massachusetts Institute of Technology. This work was supported by AFOSR grant #F49620-98-1-0313 and ARO grant # DAAG55-98-1-0375.

PY - 2001/8/15

Y1 - 2001/8/15

N2 - We show that two multilevel atoms can perform quantum communication with each other via interaction with an enclosing cavity containing no photons. The physical mechanism is analogous to the way populations can be exchanged between the extremal states in a three level system via adiabatic following, without populating the intermediate states. The combined system of the two atoms, the cavity, and two laser beams contains a dark state corresponding to the cavity in its ground state. Using a counter-intuitive pulse sequence, quantum information can be transferred adiabatically from one atom to the other via this cavity dark state. This process can be used to circumvent the effect of cavity decay in a quantum computer formed by cavity interconnected qubits.

AB - We show that two multilevel atoms can perform quantum communication with each other via interaction with an enclosing cavity containing no photons. The physical mechanism is analogous to the way populations can be exchanged between the extremal states in a three level system via adiabatic following, without populating the intermediate states. The combined system of the two atoms, the cavity, and two laser beams contains a dark state corresponding to the cavity in its ground state. Using a counter-intuitive pulse sequence, quantum information can be transferred adiabatically from one atom to the other via this cavity dark state. This process can be used to circumvent the effect of cavity decay in a quantum computer formed by cavity interconnected qubits.

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Cavity dark states for quantum computing

Abstract

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