Optimized pulse sequences for suppressing unwanted transitions in quantum systems
نویسندگان
چکیده
منابع مشابه
Keeping a quantum bit alive by optimized pi-pulse sequences.
A general strategy to maintain the coherence of a quantum bit is proposed. The analytical result is derived rigorously including all memory and backaction effects. It is based on an optimized pi-pulse sequence for dynamic decoupling extending the Carr-Purcell-Meiboom-Gill cycle. The optimized sequence is very efficient, in particular, for strong couplings to the environment.
متن کاملSuppressing Unwanted Memories
When reminded of something we would prefer not to think about, we often try to exclude the unwanted memory from awareness. Recent research indicates that people control unwanted memories by stopping memory retrieval, using mechanisms similar to those used to stop reflexive motor responses. Controlling unwanted memories is implemented by the lateral prefrontal cortex, which acts to reduce activi...
متن کاملOptimized Pulse Sequences at High Field
1. Introduction The increasing interest in MRI at high magnetic field (i.e. 3T and above) has mainly been driven by neuro-imaging applications. More specifically, the higher sensitivity to detect activations in functional neuro-imaging studies was a main incentive. With the more widespread availability of high field systems many other applications benefit from the main advantage of higher magne...
متن کاملSuppressing environmental noise in quantum computation through pulse control
A scheme based on pulse control is described for suppressing noise in quantum computation without the cost of stringent quantum computing resources. It is shown that environment-induced noise and decoherence, whether in quantum memory or in gate operations, all can be much reduced by applying a suitable sequence of bit-flipping and phase-flipping pulses. q 1999 Published by Elsevier Science B.V...
متن کاملSUPPRESSING UNWANTED AUTOBIOGRAPHICAL MEMORIES 1 Running head: SUPPRESSING UNWANTED AUTOBIOGRAPHICAL MEMORIES Suppressing Unwanted Autobiographical Memories Reduces Their Automatic Influences: Evidence from Electrophysiology and an Implicit Autobiographical Memory Test
The present study investigated the extent to which people can suppress unwanted autobiographical memories in a mock crime memory detection context. Participants encoded sensorimotor-rich memories by enacting a lab crime (stealing a ring) and received direct suppression instructions so as to evade guilt detection in a brainwave-based concealed information test. Aftereffects of suppression on aut...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review A
سال: 2011
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.83.012324