Using sideband transitions for two-qubit operations in superconducting circuits

被引：170

作者：

Leek, P. J. ^{[1
]}

Filipp, S. ^{[1
]}

Maurer, P. ^{[1
]}

Baur, M. ^{[1
]}

Bianchetti, R. ^{[1
]}

Fink, J. M. ^{[1
]}

Goppl, M. ^{[1
]}

Steffen, L. ^{[1
]}

Wallraff, A. ^{[1
]}

机构：

[1] ETH, Dept Phys, CH-8093 Zurich, Switzerland

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 18期

基金：

瑞士国家科学基金会;

关键词：

Bell theorem; quantum electrodynamics; quantum entanglement; quantum optics; resonators; superconducting junction devices; transmission lines; two-photon processes; QUANTUM; QUBITS;

D O I：

10.1103/PhysRevB.79.180511

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate the time-resolved driving of two-photon blue sideband transitions between superconducting qubits and a transmission line resonator. As an example of using these sideband transitions for a two-qubit operation, we implement a pulse sequence that first entangles one qubit with the resonator and subsequently distributes the entanglement between two qubits. We show the generation of 75% fidelity Bell states by this method. The full density matrix of the two-qubit system is extracted using joint measurement and quantum state tomography and shows close agreement with numerical simulation.

引用

页数：4

共 50 条

[41] Impact of Spectators on a Two-Qubit Gate in a Tunable Coupling Superconducting Circuit
Cai, T-Q
Han, X-Y
Wu, Y-K
Ma, Y-L
Wang, J-H
Wang, Z-L
Zhang, H-Y
Wang, H-Y
Song, Y-P
Duan, L-M
PHYSICAL REVIEW LETTERS, 2021, 127 (06)
[42] Two-qubit state tomography with ensemble average in coupled superconducting qubits
Li, Mengmeng
Xue, Guangming
Tan, Xinsheng
Liu, Qiang
Dai, Kunzhe
Zhang, Ke
Yu, Haifeng
Yu, Yang
APPLIED PHYSICS LETTERS, 2017, 110 (13)
[43] Decoherence control: Universal protection of two-qubit states and two-qubit gates using continuous driving fields
Chaudhry, Adam Zaman
Gong, Jiangbin
PHYSICAL REVIEW A, 2012, 85 (01):
[44] Discrimination of two-qubit unitaries via local operations and classical communication
Bae, Joonwoo
SCIENTIFIC REPORTS, 2015, 5
[45] Encoding Two-Qubit Logical States and Quantum Operations Using the Energy States of a Physical System
Ntalaperas, Dimitrios
Konofaos, Nikos
TECHNOLOGIES, 2022, 10 (01)
[46] Discrimination of two-qubit unitaries via local operations and classical communication
Joonwoo Bae
Scientific Reports, 5
[47] Teleportation two-qubit state by using two different protocols
K. El Anouz
A. El Allati
N. Metwally
Optical and Quantum Electronics, 2019, 51
[48] Scalable superconducting qubit circuits using dressed states
Liu, Yu-xi
Sun, C. P.
Nori, Franco
PHYSICAL REVIEW A, 2006, 74 (05):
[49] Teleportation two-qubit state by using two different protocols
El Anouz, K.
El Allati, A.
Metwally, N.
OPTICAL AND QUANTUM ELECTRONICS, 2019, 51 (06)
[50] Proposal for a two-qubit quantum phase gate for quantum photonic integrated circuits
Johne, Robert
Fiore, Andrea
PHYSICAL REVIEW A, 2012, 86 (06):

← 1 2 3 4 5 →