Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevLett.107.060501
Title: Thermal states as universal resources for quantum computation with always-on interactions
Authors: Li, Y.
Browne, D.E.
Kwek, L.C. 
Raussendorf, R.
Wei, T.-C.
Issue Date: 1-Aug-2011
Source: Li, Y., Browne, D.E., Kwek, L.C., Raussendorf, R., Wei, T.-C. (2011-08-01). Thermal states as universal resources for quantum computation with always-on interactions. Physical Review Letters 107 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.107.060501
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. © 2011 American Physical Society.
Source Title: Physical Review Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/112532
ISSN: 00319007
DOI: 10.1103/PhysRevLett.107.060501
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