Entanglement-based quantum information technology: a tutorial

Z Zhang, C You, OS Magaña-Loaiza… - Advances in Optics …, 2024 - opg.optica.org
Entanglement is a quintessential quantum mechanical phenomenon with no classical
equivalent. First discussed by Einstein, Podolsky, and Rosen and formally introduced by …

[HTML][HTML] Practical quantum-enhanced receivers for classical communication

IA Burenkov, MV Jabir, SV Polyakov - AVS quantum science, 2021 - pubs.aip.org
Communication is an integral part of human life. Today, optical pulses are the preferred
information carriers for long-distance communication. The exponential growth in data leads …

Optimal entanglement-assisted electromagnetic sensing and communication in the presence of noise

H Shi, B Zhang, JH Shapiro, Z Zhang, Q Zhuang - Physical Review Applied, 2024 - APS
High time-bandwidth product signal and idler pulses comprised of independent identically
distributed two-mode squeezed vacuum (TMSV) states are readily produced by …

Beating the standard quantum limit for binary phase-shift-keying discrimination with a realistic hybrid feed-forward receiver

MN Notarnicola, S Olivares - Physical Review A, 2023 - APS
We propose a hybrid feed-forward receiver (HFFRE) for the discrimination of binary phase-
shift-keyed coherent states based on the appropriate combination of a displacement feed …

Optimizing state-discrimination receivers for continuous-variable quantum key distribution over a wiretap channel

MN Notarnicola, M Jarzyna, S Olivares… - New Journal of …, 2023 - iopscience.iop.org
We address a continuous-variable quantum key distribution protocol employing quaternary
phase-shift-keying of coherent states and a non-Gaussian measurement inspired by …

Discriminating mixed qubit states with collective measurements

LO Conlon, F Eilenberger, PK Lam… - Communications …, 2023 - nature.com
It is a central fact in quantum mechanics that non-orthogonal states cannot be distinguished
perfectly. In general, the optimal measurement for distinguishing such states is a collective …

Quantum receiver enhanced by adaptive learning

C Cui, W Horrocks, S Hao, S Guha… - Light: Science & …, 2022 - nature.com
Quantum receivers aim to effectively navigate the vast quantum-state space to endow
quantum information processing capabilities unmatched by classical receivers. To date, only …

Quantum receiver for phase-shift keying at the single-photon level

JS Sidhu, S Izumi, JS Neergaard-Nielsen, C Lupo… - Prx Quantum, 2021 - APS
Quantum enhanced receivers are endowed with resources to achieve higher sensitivities
than conventional technologies. For application in optical communications, they provide …

Adaptive generalized measurement for unambiguous state discrimination of quaternary phase-shift-keying coherent states

S Izumi, JS Neergaard-Nielsen, UL Andersen - Prx Quantum, 2021 - APS
Generalized quantum measurements identifying nonorthogonal states without ambiguity
often play an indispensable role in various quantum applications. For such an unambiguous …

Energy and bandwidth efficiency optimization of quantum-enabled optical communication channels

MV Jabir, NFR Annafianto, IA Burenkov… - npj Quantum …, 2022 - nature.com
We present a systematic study of quantum receivers and modulation methods enabling
resource efficient quantum-enhanced optical communication. We introduce quantum …