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 language | English (US) |
|---|---|
| Pages (from-to) | 208-214 |
| Number of pages | 7 |
| Journal | EPL |
| Volume | 74 |
| Issue number | 2 |
| DOIs | |
| State | Published - Apr 15 2006 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
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 journal › Article
}
TY - JOUR
T1 - Exact simulation of multi-qubit dynamics with only three qubits
AU - Olaya-Castro, A.
AU - Lee, C. F.
AU - Johnson, Neil F
PY - 2006/4/15
Y1 - 2006/4/15
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=33646011576&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33646011576&partnerID=8YFLogxK
U2 - 10.1209/epl/i2006-10005-1
DO - 10.1209/epl/i2006-10005-1
M3 - Article
AN - SCOPUS:33646011576
VL - 74
SP - 208
EP - 214
JO - Europhysics Letters
JF - Europhysics Letters
SN - 0295-5075
IS - 2
ER -