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Preserving coherence in Rydberg quantum bits

Preserving coherence in Rydberg quantum bits
Preserving coherence in Rydberg quantum bits
The effectiveness of decoherence suppression schemes is explored using quantum bits (qubits) stored in Li np Rydberg states. Following laser excitation, pulsed electric fields coherently control the electronic spin-orbit coupling, facilitating qubit creation, manipulation, and measurement. Spin-orbit coupling creates an approximate decoherence-free subspace for extending qubit storage times. However, sequences of fast NOT operations are found to be substantially more effective for preserving coherence.
040504-[4]
Minns, R. S.
f0e200a0-afa0-4752-afc5-d85c9d4e476e
Kutteruf, M. R.
c40e0cad-0523-4e59-a49d-5d14478c182f
Zaidi, H.
c7c378de-5019-4b24-9757-b08db4d5e975
Ko, L.
c324e9d1-cabc-40b3-b97f-1990ed4379aa
Jones, R. R.
5a3fd912-390f-41b9-b503-3d0f941c8565
Minns, R. S.
f0e200a0-afa0-4752-afc5-d85c9d4e476e
Kutteruf, M. R.
c40e0cad-0523-4e59-a49d-5d14478c182f
Zaidi, H.
c7c378de-5019-4b24-9757-b08db4d5e975
Ko, L.
c324e9d1-cabc-40b3-b97f-1990ed4379aa
Jones, R. R.
5a3fd912-390f-41b9-b503-3d0f941c8565

Minns, R. S., Kutteruf, M. R., Zaidi, H., Ko, L. and Jones, R. R. (2006) Preserving coherence in Rydberg quantum bits. Physical Review Letters, 97 (4), 040504-[4]. (doi:10.1103/PhysRevLett.97.040504).

Record type: Article

Abstract

The effectiveness of decoherence suppression schemes is explored using quantum bits (qubits) stored in Li np Rydberg states. Following laser excitation, pulsed electric fields coherently control the electronic spin-orbit coupling, facilitating qubit creation, manipulation, and measurement. Spin-orbit coupling creates an approximate decoherence-free subspace for extending qubit storage times. However, sequences of fast NOT operations are found to be substantially more effective for preserving coherence.

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More information

Published date: July 2006
Additional Information: Times Cited: 12
Organisations: Chemistry

Identifiers

Local EPrints ID: 336636
URI: http://eprints.soton.ac.uk/id/eprint/336636
PURE UUID: 082f5112-87c6-4a0d-a0fb-18911a6066b3

Catalogue record

Date deposited: 03 Apr 2012 13:30
Last modified: 16 Jul 2019 22:08

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