Nonlocal cancellation of dispersion in Franson interferometry

Abstract

Dispersion and its cancellation in entanglement-based nonlocal quantum measurements are of fundamental and practical interests. We report the first demonstration of cancellation of femtosecond-level dispersion by inverting the sign of the differential dispersion between the long and short paths in only one arm of a fiber-based Franson interferometer. We restore the otherwise limited quantum visibility to an unprecedented 99.6%, and put time-energy entanglement at the same level of quality as polarization entanglement for use in quantum information processing applications.

References in corpus (4)

• Quantum-inspired interferometry with chirped laser pulses
• Security of high-dimensional quantum key distribution protocols using Franson interferometers
• Observations of Dispersion Cancellation of Entangled Photon Pairs
• Efficient single-spatial-mode periodically-poled KTiOPO_4 waveguide source for high-dimensional entanglement-based quantum key distribution

Cited by in corpus (9)

• Teleportation Systems Towards a Quantum Internet
• Unconditional Security of Time-energy Entanglement Quantum Key Distribution using Dual-basis Interferometry
• Experimental fast quantum random number generation using high-dimensional entanglement with entropy monitoring
• Experimentally optimizing QKD rates via nonlocal dispersion compensation
• Optimal analysis of ultra broadband energy-time entanglement for high bit-rate dense wavelength division multiplexed quantum networks
• Nine-Path Quantum Interferometry over 60 km
• Nonlocal subpicosecond delay metrology using spectral quantum interference
• Nonlocal Dispersion Cancellation for Three or More Photons
• Quantum, Nonlocal Aberration Cancellation