Details
| Original language | English |
|---|---|
| Article number | 060501 |
| Journal | Physical review letters |
| Volume | 107 |
| Issue number | 6 |
| Publication status | Published - 1 Aug 2011 |
| Externally published | Yes |
Abstract
Measurement-based quantum computation utilizes an initial entangled resource state and proceeds with subsequent single-qubit measurements. It is implicitly assumed that the interactions between qubits can be switched off so that the dynamics of the measured qubits do not affect the computation. By proposing a model spin Hamiltonian, we demonstrate that measurement-based quantum computation can be achieved on a thermal state with always-on interactions. Moreover, computational errors induced by thermal fluctuations can be corrected and thus the computation can be executed fault tolerantly if the temperature is below a threshold value.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical review letters, Vol. 107, No. 6, 060501, 01.08.2011.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Thermal States as Universal Resources for Quantum Computation with Always-On Interactions
AU - Li, Ying
AU - Browne, Daniel E.
AU - Kwek, Leong Chuan
AU - Raussendorf, Robert
AU - Wei, Tzu Chieh
PY - 2011/8/1
Y1 - 2011/8/1
N2 - Measurement-based quantum computation utilizes an initial entangled resource state and proceeds with subsequent single-qubit measurements. It is implicitly assumed that the interactions between qubits can be switched off so that the dynamics of the measured qubits do not affect the computation. By proposing a model spin Hamiltonian, we demonstrate that measurement-based quantum computation can be achieved on a thermal state with always-on interactions. Moreover, computational errors induced by thermal fluctuations can be corrected and thus the computation can be executed fault tolerantly if the temperature is below a threshold value.
AB - Measurement-based quantum computation utilizes an initial entangled resource state and proceeds with subsequent single-qubit measurements. It is implicitly assumed that the interactions between qubits can be switched off so that the dynamics of the measured qubits do not affect the computation. By proposing a model spin Hamiltonian, we demonstrate that measurement-based quantum computation can be achieved on a thermal state with always-on interactions. Moreover, computational errors induced by thermal fluctuations can be corrected and thus the computation can be executed fault tolerantly if the temperature is below a threshold value.
UR - http://www.scopus.com/inward/record.url?scp=79961119184&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.107.060501
DO - 10.1103/PhysRevLett.107.060501
M3 - Article
AN - SCOPUS:79961119184
VL - 107
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 6
M1 - 060501
ER -