Dynamical suppression of 1/f noise processes in qubit systems -: art. no. 117905

被引:92
作者
Faoro, L
Viola, L
机构
[1] Inst Sci Interchange Fdn, I-10133 Turin, Italy
[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
关键词
D O I
10.1103/PhysRevLett.92.117905
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We investigate the capability of dynamical decoupling techniques to reduce decoherence from a realistic environment generating 1/f noise. The predominance of low frequency modes in the noise profile allows for decoherence scenarios where relatively slow control rates suffice for a drastic improvement. However, the actual figure of merit is very sensitive to the details of the dynamics, with decoupling performance which may deteriorate for non-Gaussian noise and/or high frequency working points. Our results are promising for robust solid-state qubits and beyond.
引用
收藏
页码:117905 / 1
页数:4
相关论文
共 23 条
[1]  
ABRAMOWITZ M, 1970, HDB MATH FUNCTIONS, P556
[2]   DETAILED BALANCE IN SINGLE-CHARGE TRAPS [J].
BAUERNSCHMITT, R ;
NAZAROV, YV .
PHYSICAL REVIEW B, 1993, 47 (15) :9997-10000
[3]   Photon-assisted tunneling in electron pumps [J].
Covington, M ;
Keller, MW ;
Kautz, RL ;
Martinis, JM .
PHYSICAL REVIEW LETTERS, 2000, 84 (22) :5192-5195
[4]   LOW-FREQUENCY FLUCTUATIONS IN SOLIDS - 1-F NOISE [J].
DUTTA, P ;
HORN, PM .
REVIEWS OF MODERN PHYSICS, 1981, 53 (03) :497-516
[5]  
FAORO L, IN PRESS
[6]   Suppression of decoherence in quantum registers by entanglement with a nonequilibrium environment [J].
Gheorghiu-Svirschevski, S. .
Physical Review A - Atomic, Molecular, and Optical Physics, 2002, 66 (03) :321011-321012
[7]  
GUTMANN H, QUANTPH0308107
[8]  
Haeberlen U., 1976, ADV MAGN RESON
[9]   LONG-TERM-MEMORY IN STOCK-MARKET PRICES [J].
LO, AW .
ECONOMETRICA, 1991, 59 (05) :1279-1313
[10]   Decoherence of a superconducting qubit due to bias noise [J].
Martinis, JM ;
Nam, S ;
Aumentado, J ;
Lang, KM ;
Urbina, C .
PHYSICAL REVIEW B, 2003, 67 (09)