Work

Realization of Reliable Solid-State Quantum Memory for Photonic Polarization Qubit

Year: 2012

Type: article

Abstract: Faithfully storing an unknown quantum light state is essential to advanced quantum communication and distributed quantum computation applications. The required quantum memory must have high fidelity to improve the performance of a quantum network. Here we report the reversible transfer of photonic polarization states into collective atomic excitation in a compact solid-state device. The quantum memory is based on an atomic frequency comb (AFC) in rare-earth ion-doped crystals. We obtain up to 0.999 process fidelity for the storage and retrieval process of single-photon-level coherent pulse. This reliable quantum memory is a crucial step toward quantum networks based on solid-state devices.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.108.190505

Authors: Zong-Quan Zhou, Wei-Bin Lin, Ming Yang, Chuan-Feng Li, Guang-Can Guo

Institutions: University of Science and Technology of China, CAS Key Laboratory of Quantum Information, USTC

Language: English

Topic: Quantum optics and atomic interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2050586276

FWCI: 8.591

Cites: 42

Cited by: 155

Related to: 10