How long can a quantum memory withstand depolarizing noise?

Details How long can a quantum memory withstand depolarizing noise? How long can a quantum memory withstand depolarizing noise?

2009-04-30

arxiv.org/abs/0904.4861v2

Phys. Rev. Lett. 103, 080501 (2009)

Physics

Quantum Physics

4 pages, 2 figures. Accepted version, Journal-Ref added

Scientific paper

10.1103/PhysRevLett.103.080501

We investigate the possibilities and limitations of passive Hamiltonian protection of a quantum memory against depolarizing noise. Without protection, the lifetime of a single qubit is independent of N, the number of qubits composing the memory. In the presence of a protecting Hamiltonian, the lifetime increases at most logarithmically with N. We construct an explicit time-independent Hamiltonian which saturates this bound, exploiting the noise itself to achieve the protection.

Affiliated with

Also associated with

No associations

Rating

How long can a quantum memory withstand depolarizing noise? 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 How long can a quantum memory withstand depolarizing noise?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and How long can a quantum memory withstand depolarizing noise? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-443739