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Title: Electro-Optic Frequency Beam Splitters and Tritters for High-Fidelity Photonic Quantum Information Processing

Abstract

In this paper, we report the experimental realization of high-fidelity photonic quantum gates for frequency-encoded qubits and qutrits based on electro-optic modulation and Fourier-transform pulse shaping. Our frequency version of the Hadamard gate offers near-unity fidelity (0.99998±0.00003), requires only a single microwave drive tone for near-ideal performance, functions across the entire C band (1530–1570 nm), and can operate concurrently on multiple qubits spaced as tightly as four frequency modes apart, with no observable degradation in the fidelity. For qutrits, we implement a 3×3 extension of the Hadamard gate: the balanced tritter. This tritter—the first ever demonstrated for frequency modes—attains fidelity 0.9989±0.0004. Finally, these gates represent important building blocks toward scalable, high-fidelity quantum information processing based on frequency encoding.

Authors:
 [1];  [2];  [3];  [1];  [1];  [1];  [2]
  1. Purdue Univ., West Lafayette, IN (United States). School of Electrical and Computer Engineering. Purdue Quantum Center
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Information Science Group. Computational Sciences and Engineering Division
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Information Science Group. Computational Sciences and Engineering Division; Univ. of Tennessee, Knoxville, TN (United States). Bredesen Center for Interdisciplinary Research and Graduate Education
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Purdue Univ., West Lafayette, IN (United States)
Sponsoring Org.:
USDOE; ORNL Laboratory Directed Research and Development (LDRD) Program; National Science Foundation (NSF)
OSTI Identifier:
1423025
Alternate Identifier(s):
OSTI ID: 1417418
Grant/Contract Number:  
AC05-00OR22725; ECCS-1407620
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 120; Journal Issue: 3; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING; 36 MATERIALS SCIENCE; optoelectronics; photonics; quantum information processing; quantum state engineering

Citation Formats

Lu, Hsuan-Hao, Lukens, Joseph M., Peters, Nicholas A., Odele, Ogaga D., Leaird, Daniel E., Weiner, Andrew M., and Lougovski, Pavel. Electro-Optic Frequency Beam Splitters and Tritters for High-Fidelity Photonic Quantum Information Processing. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.120.030502.
Lu, Hsuan-Hao, Lukens, Joseph M., Peters, Nicholas A., Odele, Ogaga D., Leaird, Daniel E., Weiner, Andrew M., & Lougovski, Pavel. Electro-Optic Frequency Beam Splitters and Tritters for High-Fidelity Photonic Quantum Information Processing. United States. https://doi.org/10.1103/PhysRevLett.120.030502
Lu, Hsuan-Hao, Lukens, Joseph M., Peters, Nicholas A., Odele, Ogaga D., Leaird, Daniel E., Weiner, Andrew M., and Lougovski, Pavel. Thu . "Electro-Optic Frequency Beam Splitters and Tritters for High-Fidelity Photonic Quantum Information Processing". United States. https://doi.org/10.1103/PhysRevLett.120.030502. https://www.osti.gov/servlets/purl/1423025.
@article{osti_1423025,
title = {Electro-Optic Frequency Beam Splitters and Tritters for High-Fidelity Photonic Quantum Information Processing},
author = {Lu, Hsuan-Hao and Lukens, Joseph M. and Peters, Nicholas A. and Odele, Ogaga D. and Leaird, Daniel E. and Weiner, Andrew M. and Lougovski, Pavel},
abstractNote = {In this paper, we report the experimental realization of high-fidelity photonic quantum gates for frequency-encoded qubits and qutrits based on electro-optic modulation and Fourier-transform pulse shaping. Our frequency version of the Hadamard gate offers near-unity fidelity (0.99998±0.00003), requires only a single microwave drive tone for near-ideal performance, functions across the entire C band (1530–1570 nm), and can operate concurrently on multiple qubits spaced as tightly as four frequency modes apart, with no observable degradation in the fidelity. For qutrits, we implement a 3×3 extension of the Hadamard gate: the balanced tritter. This tritter—the first ever demonstrated for frequency modes—attains fidelity 0.9989±0.0004. Finally, these gates represent important building blocks toward scalable, high-fidelity quantum information processing based on frequency encoding.},
doi = {10.1103/PhysRevLett.120.030502},
journal = {Physical Review Letters},
number = 3,
volume = 120,
place = {United States},
year = {Thu Jan 18 00:00:00 EST 2018},
month = {Thu Jan 18 00:00:00 EST 2018}
}

Journal Article:

Citation Metrics:
Cited by: 89 works
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Figures / Tables:

FIG.  1 FIG. 1: Experimental setup. See text and Appendix C for details.

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.