TY - JOUR

T1 - Parallel multi-two-qubit swap gate via quantum nondemolition interaction of orbital-angular-momentum light and an atomic ensemble

AU - Башмакова, Елизавета Николаевна

AU - Вашукевич, Евгений Александрович

AU - Голубева, Татьяна Юрьевна

PY - 2024/1/23

Y1 - 2024/1/23

N2 - Nowadays, the quantum swap gate has become an integral part of quantum computing, so the investigation of methods for its realization seems to be an important practical problem for various quantum-optical and information applications. In the present paper, we propose a scheme for performing a swap logic operation in discrete variables in the framework of quantum nondemolition interaction between an atomic ensemble and a multimode light with orbital angular momentum. We discuss in detail the procedure for revealing two-qubit closed subsystems on a set of atomic and field states for different values of the driving field orbital momentum. We also demonstrate the possibility of implementing a parallel multi-two-qubit quantum swap gate.

AB - Nowadays, the quantum swap gate has become an integral part of quantum computing, so the investigation of methods for its realization seems to be an important practical problem for various quantum-optical and information applications. In the present paper, we propose a scheme for performing a swap logic operation in discrete variables in the framework of quantum nondemolition interaction between an atomic ensemble and a multimode light with orbital angular momentum. We discuss in detail the procedure for revealing two-qubit closed subsystems on a set of atomic and field states for different values of the driving field orbital momentum. We also demonstrate the possibility of implementing a parallel multi-two-qubit quantum swap gate.

UR - https://www.mendeley.com/catalogue/dbfcfa56-3bb0-313a-85f5-ba916181f125/

U2 - 10.1103/PhysRevA.109.012428

DO - 10.1103/PhysRevA.109.012428

M3 - Article

VL - 109

JO - Physics Letters A

JF - Physics Letters A

SN - 0375-9601

IS - 1

M1 - 012428

ER -