Heralded quantum gates for atomic systems assisted by the scattering of photons off single emitters

Journal Article · Fri Dec 15 04:00:00 EST 2017 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2017.10.005· OSTI ID:22848517

Song, Guo-Zhu; Liu, Qian; Qiu, Jing; Yang, Guo-Jian ^[1]; Alzahrani, Faris; Hobiny, Aatef ^[2]; Deng, Fu-Guo ^[1]; Zhang, Mei ^[1]

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1. Department of Physics, Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875 (China)
2. NAAM-Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589 (Saudi Arabia)

Quantum logic gates are essential in quantum information processing. Here, we propose three heralded schemes for universal quantum gates, including the controlled-NOT, Toffoli, and Fredkin gates on atomic systems, assisted by the scattering of photons off single emitters in one-dimensional waveguides. Interestingly, our schemes can turn faulty scattering processes of photons off atoms into the detection of the photon polarization. Furthermore, auxiliary atomic qubits are not needed and only one photon medium is adopted. With current technology, we discuss the feasibility of these universal quantum gates, concluding that they are feasible and scalable in solid-state quantum systems. We provide a different method for realizing universal quantum gates, and it may be useful in quantum information processing in the future.

• OSTI ID: 22848517
• Journal Information: Annals of Physics, Journal Name: Annals of Physics Vol. 387; ISSN 0003-4916; ISSN APNYA6
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ONE-DIMENSIONAL CALCULATIONS
PHOTONS
POLARIZATION
QUANTUM SYSTEMS
QUBITS
SCATTERING
WAVEGUIDES