Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/17199
Title: 
Thermal states as universal resources for quantum computation with always-on interactions
Authors: 
Issue Date: 
2011
Citation: 
Li, Y., Browne, D. E., Kwek, L. C., Raussendorf, R., & Wei, T. C. (2011). Thermal states as universal resources for quantum computation with always-on interactions. Physical Review Letters, 107(6), 060501.
Abstract: 
Measurement-based quantum computation utilizes an initial entangled resource state and pro-ceeds 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.
Description: 
This is the original draft, prior to peer-review, of a manuscript published in Physical Review Letters. The published version is available online at http://dx.doi.org/10.1103/PhysRevLett.107.060501
URI: 
ISSN: 
0031-9007
Other Identifiers: 
10.1103/PhysRevLett.107.060501
Appears in Collections:Journal Articles

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