Protection of quantum systems by nested dynamical decoupling

Details Protection of quantum systems by nested dynamical decoupling Protection of quantum systems by nested dynamical decoupling

2010-06-08

arxiv.org/abs/1006.1601v4

Phys. Rev. A 83, 022306 (2011)

Physics

Quantum Physics

11 pages, fully rewritten from version 1, some corrections made from version 2

Scientific paper

10.1103/PhysRevA.83.022306

Based on a theorem we establish on dynamical decoupling of time-dependent systems, we present a scheme of nested Uhrig dynamical decoupling (NUDD) to protect multi-qubit systems in generic quantum baths to arbitrary decoupling orders, using only single-qubit operations. The number of control pulses in NUDD increases polynomially with the decoupling order. For general multi-level systems, this scheme can preserve a set of unitary Hermitian system operators which mutually either commute or anti-commute, and hence all operators in the Lie algebra generated from this set of operators, generating an effective symmetry group for the system up to a given order of precision. NUDD can be implemented with pulses of finite amplitude, up to an error in the second order of the pulse durations.

Affiliated with

Also associated with

No associations

Rating

Protection of quantum systems by nested dynamical decoupling does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Protection of quantum systems by nested dynamical decoupling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protection of quantum systems by nested dynamical decoupling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-30608