Exact simulation of multi-qubit dynamics with only three qubits

A. Olaya-Castro, C. F. Lee, Neil F Johnson

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We present equivalence relations which simplify the dynamics of an important class of interacting multi-qubit systems. We show that a wide class of M + 1 qubit systems, with one or M excitations, can be reduced to an equivalent n + 1 qubit system with n ≥ 2, for any M. The equivalent system faithfully reproduces the overall dynamics of the original one including the entanglement properties. In addition to its direct application to qubit-cavity systems, the formalism offers insight into a variety of situations ranging from decoherence due to a spin-bath with its own internal entanglement, through to energy transfer processes in organic systems such as biological photosynthetic units.

Original languageEnglish (US)
Pages (from-to)208-214
Number of pages7
JournalEPL
Volume74
Issue number2
DOIs
StatePublished - Apr 15 2006
Externally publishedYes

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equivalence
baths
simulation
energy transfer
formalism
cavities
excitation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Olaya-Castro, A., Lee, C. F., & Johnson, N. F. (2006). Exact simulation of multi-qubit dynamics with only three qubits. EPL, 74(2), 208-214. https://doi.org/10.1209/epl/i2006-10005-1

Exact simulation of multi-qubit dynamics with only three qubits. / Olaya-Castro, A.; Lee, C. F.; Johnson, Neil F.

In: EPL, Vol. 74, No. 2, 15.04.2006, p. 208-214.

Research output: Contribution to journalArticle

Olaya-Castro, A, Lee, CF & Johnson, NF 2006, 'Exact simulation of multi-qubit dynamics with only three qubits', EPL, vol. 74, no. 2, pp. 208-214. https://doi.org/10.1209/epl/i2006-10005-1
Olaya-Castro, A. ; Lee, C. F. ; Johnson, Neil F. / Exact simulation of multi-qubit dynamics with only three qubits. In: EPL. 2006 ; Vol. 74, No. 2. pp. 208-214.
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