Photonics Archives - IEEE Transactions on Quantum Engineering

MIMO Terahertz Quantum Key Distribution Under Restricted Eavesdropping

June 14, 2023Neel Kanth KunduQuantum InformationEavesdropping, MIMO communication, Photonics, Quantum computing, Quantum key distribution, Security, Wireless communication

Quantum key distribution (QKD) can provide unconditional security to next-generation communication networks guaranteed by the laws of quantum physics. This article studies the secret key rate (SKR) of a continuous variable QKD (CV-QKD) system using multiple-input multiple-output (MIMO) transmission and operating at terahertz (THz) frequencies. Distinct from previous works, we consider a practical “restricted” eavesdropping […]

Fundamentals of Quantum Fourier Optics

March 30, 2023Mohammad RezaiQuantum InformationHolography, Optical imaging, Optical signal processing, Optics, Photonics, Quantum computing, Quantum state

All-quantum signal processing techniques are at the core of the successful advancement of most information-based quantum technologies. This article develops coherent and comprehensive methodologies and mathematical models to describe Fourier optical signal processing in full quantum terms for any input quantum state of light. We begin this article by introducing a spatially 2-D quantum state […]

Estimation of the CHSH Parameter Using HOM Interference

November 2, 2022Richard A. BrewsterOpen Access, Quantum InternetCrystals, Detectors, Interference, Optical variables measurement, Photonics, Quantum entanglement, Quantum optics

The Clauser–Horne–Shimony–Holt (CHSH) experiment is an essential test of nonlocality in quantum mechanics and can be used to validate the principle of entanglement. In addition to verifying entanglement, the measurable CHSH parameter can also be used to gauge the quality of the entanglement present in a system. The measurement of Hong–Ou–Mandel (HOM) interference is another […]

Efficient Quantum Network Communication Using Optimized Entanglement Swapping Trees

November 2, 2022Mohammad GhaderibanehOpen Access, Quantum InternetDegradation, Photonics, Quantum entanglement, Quantum networks, Quantum state, Qubit, Teleportation

Quantum network communication is challenging, as the no-cloning theorem in the quantum regime makes many classical techniques inapplicable; in particular, the direct transmission of qubit states over long distances is infeasible due to unrecoverable errors. For the long-distance communication of unknown quantum states, the only viable communication approach (assuming local operations and classical communications) is […]

A High-Resolution Single-Photon Arrival-Time Measurement With Self-Antithetic Variance Reduction in Quantum Applications: Theoretical Analysis and Performance Estimation

November 2, 2022Tony WuEnabling Technologies, Open AccessClocks, Generators, Photonics, Quantum state, Random variables, Single-photon avalanche diodes, Voltage control

An almost all-digital time-to-digital converter (TDC) possessing subpicosecond resolutions, scalable dynamic ranges, high linearity, high noise immunity, and moderate conversion rates can be achieved by a random sampling-and-averaging (RSA) approach with the self-antithetic variance reduction (SAVR) technique for time-correlated single-photon counting (TCSPC) quantum measurements. This article presents detailed theoretical analysis and behavior-model verifications of the […]

Timing Constraints Imposed by Classical Digital Control Systems on Photonic Implementations of Measurement-Based Quantum Computing

November 2, 2022John R. ScottOpen Access, Special Section on Classical Control SystemsComputer architecture, Control systems, Logic gates, Photonics, Quantum computing, Qubit, Timing

Most of the architectural research on photonic implementations of measurement-based quantum computing (MBQC) has focused on the quantum resources involved in the problem with the implicit assumption that these will provide the main constraints on system scaling. However, the “flying-qubit” architecture of photonic MBQC requires specific timing constraints that need to be met by the […]

Timing Constraints Imposed by Classical Digital Control Systems on Photonic Implementations of Measurement-Based Quantum Computing

May 19, 2022John R. Scott; Krishna C. BalramOpen Access, Quantum InformationComputer architecture, Control systems, Logic gates, Photonics, Quantum computing, Qubit, Timing

Efficient Quantum Network Communication Using Optimized Entanglement Swapping Trees

April 19, 2022Mohammad Ghaderibaneh; Caitao Zhan; Himanshu Gupta; C. R. RamakrishnanOpen Access, Quantum InformationDegradation, Photonics, Quantum entanglement, Quantum networks, Quantum state, Qubit, Teleportation

Estimation of the CHSH Parameter Using HOM Interference

February 18, 2022Richard A. Brewster; Julius Goldhar; Mark Morris; Gerald Baumgartner; Yanne K. ChemboOpen Access, Quantum InformationCrystals, Detectors, Interference, Optical variables measurement, Photonics, Quantum entanglement, Quantum optics

Key Device and Materials Specifications for a Repeater Enabled Quantum Internet

July 21, 2021Manish Kumar Singh; Liang Jiang; David D. Awschalom; Supratik GuhaOpen Access, Quantum InformationDetectors, Logic gates, Photonics, Quantum entanglement, Qubit, Repeaters, Single-photon avalanche diodes

Entangled photons can be used to create a truly secure communication link between two parties. However, the distance over which this can be achieved is limited by the transmission losses associated with optical fibers. One potential solution is using quantum repeaters (QRs) where initial entanglement is created over short distances and then extended via entanglement […]