Initialization of NMR quantum registers using long-lived singlet states

TY - JOUR

T1 - Initialization of NMR quantum registers using long-lived singlet states

AU - Roy, Soumya Singha

AU - Mahesh, T. S.

PY - 2010/12/6

Y1 - 2010/12/6

N2 - An ensemble of nuclear spin pairs under certain conditions is known to exhibit singlet state lifetimes much longer than other nonequilibrium states. This property of singlet states can be exploited in quantum information processing for efficient initialization of quantum registers. Here we describe a general method of initialization and experimentally demonstrate it with two-, three-, and four-qubit nuclear spin registers.

AB - An ensemble of nuclear spin pairs under certain conditions is known to exhibit singlet state lifetimes much longer than other nonequilibrium states. This property of singlet states can be exploited in quantum information processing for efficient initialization of quantum registers. Here we describe a general method of initialization and experimentally demonstrate it with two-, three-, and four-qubit nuclear spin registers.

UR - http://www.scopus.com/inward/record.url?scp=78649608767&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.82.052302

DO - 10.1103/PhysRevA.82.052302

M3 - Article

AN - SCOPUS:78649608767

VL - 82

JO - Physical Review A

JF - Physical Review A

SN - 1050-2947

IS - 5

M1 - 052302

ER -