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Title: Wavelength conversion for single-photon polarization qubits through continuous-variable quantum teleportation

Abstract

A quantum internet connects remote quantum processors that need to interact and exchange quantum signals over a long distance through photonic channels. However, these quantum nodes operate at the wavelength ranges unsuitable for long-distance transmission. Therefore, quantum wavelength conversion to telecom bands is crucial for long-distance quantum networks based on optical fiber. Here, we propose wavelength conversion devices for single-photon polarization qubits using continuous-variable quantum teleportation that can efficiently convert qubits between near-infrared (780–795 nm suitable for interacting with atomic quantum nodes) and telecom wavelength (1300–1500 nm suitable for long-distance transmission). The teleportation uses entangled photon fields (i.e., nondegenerate two-mode squeezed state) that can be generated by four-wave mixing in a rubidium atomic gas using a diamond configuration of atomic transitions. The entangled fields can be emitted in two orthogonal polarizations with locked relative phase, making them especially suitable for interfacing with single- photon polarization qubits. Furthermore, our work may pave the way for the realization of long-distance quantum networks.

Authors:
 [1]; ORCiD logo [1];  [2];  [3]; ORCiD logo [1]
  1. Univ. of Texas at Dallas, Richardson, TX (United States)
  2. College of William and Mary, Williamsburg, VA (United States)
  3. Univ. of California, Santa Cruz, CA (United States)
Publication Date:
Research Org.:
Univ. of Texas at Dallas, Richardson, TX (United States)
Sponsoring Org.:
USDOE; US Air Force Office of Scientific Research (AFOSR); US Army Research Office (ARO)
OSTI Identifier:
1874041
Grant/Contract Number:  
SC0022069
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 105; Journal Issue: 5; Journal ID: ISSN 2469-9926
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; Quantum teleportation; Qubit; Photon; Quantum information processing with continuous variables; Quantum networks; Quantum optics

Citation Formats

Luo, Xi-Wang, Zhang, Chuanwei, Novikova, Irina, Qian, Chen, and Du, Shengwang. Wavelength conversion for single-photon polarization qubits through continuous-variable quantum teleportation. United States: N. p., 2022. Web. doi:10.1103/physreva.105.052444.
Luo, Xi-Wang, Zhang, Chuanwei, Novikova, Irina, Qian, Chen, & Du, Shengwang. Wavelength conversion for single-photon polarization qubits through continuous-variable quantum teleportation. United States. https://doi.org/10.1103/physreva.105.052444
Luo, Xi-Wang, Zhang, Chuanwei, Novikova, Irina, Qian, Chen, and Du, Shengwang. Tue . "Wavelength conversion for single-photon polarization qubits through continuous-variable quantum teleportation". United States. https://doi.org/10.1103/physreva.105.052444. https://www.osti.gov/servlets/purl/1874041.
@article{osti_1874041,
title = {Wavelength conversion for single-photon polarization qubits through continuous-variable quantum teleportation},
author = {Luo, Xi-Wang and Zhang, Chuanwei and Novikova, Irina and Qian, Chen and Du, Shengwang},
abstractNote = {A quantum internet connects remote quantum processors that need to interact and exchange quantum signals over a long distance through photonic channels. However, these quantum nodes operate at the wavelength ranges unsuitable for long-distance transmission. Therefore, quantum wavelength conversion to telecom bands is crucial for long-distance quantum networks based on optical fiber. Here, we propose wavelength conversion devices for single-photon polarization qubits using continuous-variable quantum teleportation that can efficiently convert qubits between near-infrared (780–795 nm suitable for interacting with atomic quantum nodes) and telecom wavelength (1300–1500 nm suitable for long-distance transmission). The teleportation uses entangled photon fields (i.e., nondegenerate two-mode squeezed state) that can be generated by four-wave mixing in a rubidium atomic gas using a diamond configuration of atomic transitions. The entangled fields can be emitted in two orthogonal polarizations with locked relative phase, making them especially suitable for interfacing with single- photon polarization qubits. Furthermore, our work may pave the way for the realization of long-distance quantum networks.},
doi = {10.1103/physreva.105.052444},
journal = {Physical Review A},
number = 5,
volume = 105,
place = {United States},
year = {Tue May 31 00:00:00 EDT 2022},
month = {Tue May 31 00:00:00 EDT 2022}
}

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