pith. the verified trust layer for science. sign in

arxiv: 1008.5122 · v1 · pith:S7VM5CJ3new · submitted 2010-08-30 · 🪐 quant-ph · cond-mat.mes-hall· physics.chem-ph

Zeno and anti-Zeno polarization control of spin-ensembles by induced dephasing

classification 🪐 quant-ph cond-mat.mes-hallphysics.chem-ph
keywords dephasingensembleanti-zenoassociatedcontroldemonstrateinducedintervals
0
0 comments X p. Extension
Add this Pith Number to your LaTeX paper What is a Pith Number?
\usepackage{pith}
\pithnumber{S7VM5CJ3}

Prints a linked pith:S7VM5CJ3 badge after your title and writes the identifier into PDF metadata. Compiles on arXiv with no extra files. Learn more

read the original abstract

We experimentally and theoretically demonstrate the purity (polarization) control of qubits entangled with multiple spins, using induced dephasing in nuclear magnetic resonance (NMR) setups to simulate repeated quantum measurements. We show that one may steer the qubit ensemble towards a quasi-equilibrium state of certain purity, by choosing suitable time intervals between dephasing operations. These results demonstrate that repeated dephasing at intervals associated with the anti-Zeno regime lead to ensemble purification, whereas those associated with the Zeno regime lead to ensemble mixing.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.