Results 171 to 180 of about 5,139,381 (338)

Highly efficient storage of cavity SPDC single photons in room temperature gradient echo memory

open access: yesAPL Quantum
Efficient quantum memories will be an essential building block of large-scale networked quantum systems and provide a link between flying photonic qubits and atomic or quasi-atomic local quantum processors.
Anthony C. Leung   +8 more
doaj   +1 more source

Backflash Attack on Coherent One-Way Quantum Key Distribution

open access: yesIEEE Photonics Journal
In this article, we experimentally demonstrate an eavesdropper's (Eve's) information gain by exploiting the breakdown flash generated by the single photon avalanche detector (SPAD) used in coherent one-way quantum key distribution (COW-QKD)
Ashutosh Kumar Singh   +3 more
doaj   +1 more source

Single-spin qubits in isotopically enriched silicon at low magnetic field

open access: yesNature Communications, 2019
One of the main sources of decoherence in silicon electron spin qubits is their interaction with nearby fluctuating nuclear spins. Zhao et al. present a device made from enriched silicon to reduce the nuclear spin density and find its performance is ...
R. Zhao   +15 more
doaj   +1 more source

Authenticated Multiuser Quantum Direct Communication using Entanglement Swapping [PDF]

open access: yesarXiv, 2006
We present Authenticated Multiuser Quantum Direct Communication(MQDC) protocols using entanglement swapping. Quantum direct communication is believed to be a safe way to send a secret message without quantum key distribution. The authentication process in our protocol allows only proper users to participate in communication.
arxiv  

Constraints on Gaussian Error Channels and Measurements for Quantum Communication. [PDF]

open access: yesPhys Rev A (Coll Park), 2023
Kwiatkowski A   +6 more
europepmc   +1 more source

Next‐Generation Image Sensors Based on Low‐Dimensional Semiconductor Materials

open access: yesAdvanced Materials, EarlyView.
Low‐dimensional semiconductor materials are promising candidates for photosensitive components in next‐generation image sensors. This review offers a thorough and timely examination of novel image sensors, covering their working principles, intriguing materials categorized into four main groups, and advanced imaging applications.
Yunxia Hu   +3 more
wiley   +1 more source

Quantum-Amplified Simultaneous Quantum-Classical Communications [PDF]

open access: yesarXiv
Classical free-space optical (FSO) communication promises massive data throughput rates relative to traditional wireless technologies - an attractive outcome now being pursued in the context of satellite-ground, inter-satellite and deep-space communications.
arxiv  

Entanglement-assisted quantum communication with simple measurements. [PDF]

open access: yesNat Commun, 2022
Piveteau A   +5 more
europepmc   +1 more source

Communication Capacity of Quantum Computation [PDF]

open access: green, 2000
Sougato Bose, Luke Rallan, Vlatko Vedral
openalex   +1 more source

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