Almut Beige et al 2000 New J. Phys. 2 22 doi:10.1088/1367-2630/2/1/322
Driving atoms into decoherence-free states
Focus on Microlaser and Cavity QEDAlmut Beige1, Daniel Braun2 and Peter L Knight1
Show affiliationsPart of Focus on Microlaser and Cavity QED
We describe the decoherence-free subspace of N atoms in a cavity, in which decoherence due to the leakage of photons through the cavity mirrors is suppressed. We show how the states of the subspace can be entangled with the help of weak laser pulses, using the high decay rate of the cavity field and strong coupling between the atoms and the resonator mode. The atoms remain decoherence-free with a probability which can, in principle, be arbitrarily close to unity.
- PACS
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03.67.Lx Quantum computation architectures and implementations
03.67.Mn Entanglement measures, witnesses, and other characterizations
03.65.Wj State reconstruction, quantum tomography
03.67.Pp Quantum error correction and other methods for protection against decoherence
42.50.Pq Cavity quantum electrodynamics; micromasers
32.80.Qk Coherent control of atomic interactions with photons
- Subjects
- Dates
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Issue 1 (September 2000)
Received 10 May 2000
Published 12 September 2000
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Driving atoms into decoherence-free states
Almut Beige et al 2000 New J. Phys. 2 22
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