Arbitrarily Accurate Pulse Sequences for Robust Dynamical Decoupling
نویسندگان
چکیده
منابع مشابه
Robust dynamical decoupling.
Quantum computers, which process information encoded in quantum mechanical systems, hold the potential to solve some of the hardest computational problems. A substantial obstacle for the further development of quantum computers is the fact that the lifetime of quantum information is usually too short to allow practical computation. A promising method for increasing the lifetime, known as dynami...
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treatment of bath operators by considering two limiting cases for the coupling strengths of system-bath and pure-bath, namely: (i) J < β and (ii) β ≪ J [recall Eq. (18)]. In case (i), the coupling to the environment induces slow dynamics while the environment itself has fast dynamics. In case (ii), the coupling to the environment is fast but relatively stable due to the environment’s slow inter...
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We show that open-loop dynamical control techniques may be used to synthesize unitary transformations in open quantum systems in such a way that decoherence is perturbatively compensated for to a desired (in principle arbitrarily high) level of accuracy, which depends only on the strength of the relevant errors and the achievable rate of control modulation. Our constructive and fully analytical...
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We show that open-loop dynamical control techniques may be used to synthesize unitary transformations in open quantum systems in such a way that decoherence is perturbatively compensated for to a desired (in principle arbitrarily high) level of accuracy, which depends only on the strength of the relevant errors and the achievable rate of control modulation. Our constructive and fully analytical...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2017
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.118.133202