Pure dephasing in flux qubits due to flux noise with spectral density scaling as 1/fα
Pure dephasing in flux qubits due to flux noise with spectral density scaling as 1/fα
复制标题
DOI：
10.1103/physrevb.85.224505
复制
发表时间：
2012-06-05
影响因子：
3.7
通讯作者：
Clarke, John
中科院分区：
文献类型：
--
作者：
Anton, S. M.;Mueller, C.;Clarke, John
对于许多类型的超导量子位来说，磁通量噪声是纯失相的来源。对代表性直流超导量子干涉装置 (SQUID) 在一定温度范围内的测量表明，S-Phi(f) = A(2)/(f/1 Hz)(alpha)，其中 S-Phi 是通量噪声谱密度，A 的量级为 1 mu Phi(0) Hz(-1/2), 0.61
For many types of superconducting qubits, magnetic flux noise is a source of pure dephasing. Measurements on a representative dc superconducting quantum interference device (SQUID) over a range of temperatures show that S-Phi(f) = A(2)/(f/1 Hz)(alpha), where S-Phi is the flux noise spectral density, A is of the order of 1 mu Phi(0) Hz(-1/2), 0.61