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Title: Quantum nonlocal modulation cancelation with distributed clocks

Journal Article · · Optica Quantum

We demonstrate nonlocal modulation of entangled photons with truly distributed radio frequency (RF) clocks. Leveraging a custom radio-over-fiber (RFoF) system characterized via classical spectral interference, we validate its effectiveness for quantum networking by multiplexing the RFoF clock with one photon from a frequency-bin-entangled pair and distributing the coexisting quantum-classical signals over fiber. Phase modulation of the two photons reveals nonlocal correlations in excellent agreement with theory: in-phase modulation produces additional sidebands in the joint spectral intensity, while out-of-phase modulation is nonlocally canceled. Our simple, feedback-free design attains subpicosecond synchronization—namely, drift less than ∼0.5 ps in a 5.5 km fiber over 30 min (fractionally only ∼2×10 −8 of the total fiber delay)—and should facilitate frequency-encoded quantum networking protocols such as high-dimensional quantum key distribution and entanglement swapping, unlocking frequency-bin qubits for practical quantum communications in deployed metropolitan-scale networks.

Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
OSTI ID:
2507372
Journal Information:
Optica Quantum, Journal Name: Optica Quantum Journal Issue: 1 Vol. 3; ISSN 2837-6714
Publisher:
Optical Society of AmericaCopyright Statement
Country of Publication:
United States
Language:
English

References (55)

A scheme for efficient quantum computation with linear optics journal January 2001
Experimental quantum teleportation journal December 1997
Attosecond precision multi-kilometer laser-microwave network journal July 2016
Loophole-free Bell inequality violation using electron spins separated by 1.3 kilometres journal October 2015
On-chip generation of high-dimensional entangled quantum states and their coherent control journal June 2017
Single-photon detectors for optical quantum information applications journal December 2009
Experimental demonstration of a quantum key distribution without signal disturbance monitoring journal November 2015
Programmable frequency-bin quantum states in a nano-engineered silicon device journal January 2023
Quantum optical microcombs journal February 2019
Demonstration of sub-3 ps temporal resolution with a superconducting nanowire single-photon detector journal March 2020
Remote transfer of ultrastable frequency references via fiber networks journal February 2007
Dense wavelength multiplexing of 1550 nm QKD with strong classical channels in reconfigurable networking environments journal April 2009
Coexistence of continuous variable QKD with intense DWDM classical channels journal April 2015
Proof-of-principle experimental realization of a qubit-like qudit-based quantum key distribution scheme journal March 2018
Can Quantum-Mechanical Description of Physical Reality Be Considered Complete? journal May 1935
Nonlocal cancellation of dispersion journal March 1992
Nonlocal modulation of entangled photons journal August 2008
Maximal success probabilities of linear-optical quantum gates journal April 2009
Frequency-bin entangled photons journal July 2010
Security proof for quantum key distribution using qudit systems journal September 2010
Entanglement-based quantum communication secured by nonlocal dispersion cancellation journal December 2014
Reconfigurable Silicon Photonic Chip for the Generation Of Frequency-Bin-Entangled Qudits journal June 2023
Robust and Stable Delay Interferometers with Application to d -Dimensional Time-Frequency Quantum Key Distribution journal April 2017
Observation of Nonlocal Modulation with Entangled Photons journal October 2009
Significant-Loophole-Free Test of Bell’s Theorem with Entangled Photons journal December 2015
Strong Loophole-Free Test of Local Realism journal December 2015
Electro-Optic Frequency Beam Splitters and Tritters for High-Fidelity Photonic Quantum Information Processing journal January 2018
Fully Arbitrary Control of Frequency-Bin Qubits journal September 2020
Complete Frequency-Bin Bell Basis Synthesizer journal December 2022
Experimental Tests of Realistic Local Theories via Bell's Theorem journal August 1981
Experimental Test of Bell's Inequalities Using Time- Varying Analyzers journal December 1982
Experimental Realization of Einstein-Podolsky-Rosen-Bohm Gedankenexperiment : A New Violation of Bell's Inequalities journal July 1982
Quantum cryptography based on Bell’s theorem journal August 1991
Teleporting an unknown quantum state via dual classical and Einstein-Podolsky-Rosen channels journal March 1993
On the Einstein Podolsky Rosen paradox journal November 1964
Quantum cryptography journal March 2002
Linear optical quantum computing with photonic qubits journal January 2007
Microwave Photonics journal February 2009
White Rabbit Clock Synchronization: Ultimate Limits on Close-In Phase Noise and Short-Term Stability Due to FPGA Implementation journal September 2018
Provably secure and high-rate quantum key distribution with time-bin qudits journal November 2017
Advanced architectures for high-performance quantum networking journal January 2022
Nonlocal dispersion cancellation using entangled photons journal January 2009
50-GHz-spaced comb of high-dimensional frequency-bin entangled photons from an on-chip silicon nitride microresonator journal January 2018
High-dimensional discrete Fourier transform gates with a quantum frequency processor journal March 2022
Optimal resource allocation for flexible-grid entanglement distribution networks journal June 2022
Synchronization and coexistence in quantum networks journal March 2023
Two-mode squeezing over deployed fiber coexisting with conventional communications journal July 2023
A silicon source of frequency-bin entangled photons journal November 2022
Generation and characterization of ultrabroadband polarization–frequency hyperentangled photons journal November 2023
Frequency-encoded photonic qubits for scalable quantum information processing journal December 2016
Bell state analyzer for spectrally distinct photons journal March 2022
Nonlocal subpicosecond delay metrology using spectral quantum interference journal November 2022
Quantum interference and correlation control of frequency-bin qubits journal January 2018
Frequency-bin photonic quantum information journal December 2023
Nonlocal phase modulation of multimode, continuous-variable twin beams journal December 2023