Decoherence by Correlated Noise and Quantum Error Correction Export

@article{citeulike:778953, abstract = {We study the decoherence of a quantum computer in an environment which is inherently correlated in time and space. We first derive the nonunitary time evolution of the computer and environment in the presence of a stabilizer error correction code, providing a general way to quantify decoherence for a quantum computer. The general theory is then applied to the spin-boson model. Our results demonstrate that effects of long-range correlations can be systematically reduced by small changes in the error correction codes.}, author = {Novais, E. and Baranger, Harold U.}, citeulike-article-id = {778953}, citeulike-linkout-0 = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000097000004040501000001&idtype=cvips&gifs=yes}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRL/v97/e040501}, citeulike-linkout-2 = {http://dx.doi.org/10.1103/PhysRevLett.97.040501}, doi = {10.1103/PhysRevLett.97.040501}, journal = {Physical Review Letters}, keywords = {noise}, number = {4}, posted-at = {2006-07-28 23:19:27}, priority = {2}, publisher = {APS}, title = {Decoherence by Correlated Noise and Quantum Error Correction}, url = {http://dx.doi.org/10.1103/PhysRevLett.97.040501}, volume = {97}, year = {2006} }

TY - JOUR ID - citeulike:778953 L3 - citeulike-article-id:778953 N2 - We study the decoherence of a quantum computer in an environment which is inherently correlated in time and space. We first derive the nonunitary time evolution of the computer and environment in the presence of a stabilizer error correction code, providing a general way to quantify decoherence for a quantum computer. The general theory is then applied to the spin-boson model. Our results demonstrate that effects of long-range correlations can be systematically reduced by small changes in the error correction codes. IS - 4 JF - Physical Review Letters TI - Decoherence by Correlated Noise and Quantum Error Correction PB - APS VL - 97 KW - noise AU - Novais, E AU - Baranger, Harold PY - 2006/// UR - http://dx.doi.org/10.1103/PhysRevLett.97.040501 ER -