Simulated quantum process tomography of quantum gates with Rydberg superatoms

被引：26

作者：

Beterov, I. I. ^{[1
,2
,3
]}

Saffman, M. ^{[4
]}

Yakshina, E. A. ^{[1
,2
]}

Tretyakov, D. B. ^{[1
,2
]}

Entin, V. M. ^{[1
,2
]}

Hamzina, G. N. ^{[3
]}

Ryabtsev, I. I. ^{[1
,2
]}

机构：

[1] Rzhanov Inst Semicond Phys SB RAS, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Interdisciplinary Quantum Ctr, Novosibirsk 630090, Russia

[3] Novosibirsk State Tech Univ, Novosibirsk 630073, Russia

[4] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2016年 / 49卷 / 11期

基金：

俄罗斯科学基金会; 美国国家科学基金会;

关键词：

Rydberg atoms; quantum tomography; STIRAP; Rydberg blockade; POPULATION TRANSFER; ATOMS;

D O I：

10.1088/0953-4075/49/11/114007

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have numerically simulated quantum tomography of single-qubit and two-qubit quantum gates with qubits represented by mesoscopic ensembles containing random numbers of atoms. Such ensembles of strongly interacting atoms in the regime of Rydberg blockade are known as Rydberg superatoms. The stimulated Raman adiabatic passage (STIRAP) in the regime of Rydberg blockade is used for determining Rydberg excitation in the ensemble, required for the storage of quantum information in the collective state of the atomic ensemble and implementation of two-qubit gates. The optimized shapes of the STIRAP pulses are used to achieve high fidelity of the population transfer. Our simulations confirm the validity and high fidelity of single-qubit and two-qubit gates with Rydberg superatoms.

引用

页数：13

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