TY - JOUR

T1 - On mathematical and physical approaches to constructing a quantum cluster state in continuous variables, or is it possible to construct a cluster from different modes?

AU - Korolev, S.B.

AU - Vashukevich, E.A.

AU - Golubeva, T.Yu.

AU - Golubev, Yu.M.

PY - 2018/6/11

Y1 - 2018/6/11

N2 - We consider the problems of constructing a cluster state from a set of orthogonal modes. It is shown that the commonly used unitary transformation is not reduced in this case to a set of standard operations of linear optics performed over fields in a squeezed state, but should be supplemented by a more complicated operation of a noise-free transformation of the quantum signal profile. At the same time, if it is possible to form a cluster whose node amplitudes have different time profiles, this property does not interfere with the performance of calculations on the cluster.

AB - We consider the problems of constructing a cluster state from a set of orthogonal modes. It is shown that the commonly used unitary transformation is not reduced in this case to a set of standard operations of linear optics performed over fields in a squeezed state, but should be supplemented by a more complicated operation of a noise-free transformation of the quantum signal profile. At the same time, if it is possible to form a cluster whose node amplitudes have different time profiles, this property does not interfere with the performance of calculations on the cluster.

KW - Orthogonal modes

KW - Quantum cluster state

KW - Squeezed state of the light

UR - http://www.scopus.com/inward/record.url?scp=85058334879&partnerID=8YFLogxK

U2 - 10.1070/QEL16761

DO - 10.1070/QEL16761

M3 - Article

VL - 48

SP - 906

EP - 911

JO - Soviet journal of quantum electronics

JF - Soviet journal of quantum electronics

SN - 1063-7818

IS - 10

ER -