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Quantum illumination (QI) is an entanglement-enhanced sensing system whose performance advantage over a comparable classical system survives its usage in an entanglement-breaking scenario plagued by loss and noise. In particular, QI's…

Quantum Physics · Physics 2017-08-23 Quntao Zhuang , Zheshen Zhang , Jeffrey H. Shapiro

Quantum illumination (QI) is an entanglement-based protocol for improving lidar/radar detection of unresolved targets beyond what a classical lidar/radar of the same average transmitted energy can do. Originally proposed by Lloyd as a…

Quantum Physics · Physics 2024-09-20 Jeffrey H. Shapiro

We present a general framework for quantum interference (QI) between multiple, fundamentally different processes. Our framework reveals the importance of shaped input wavefunctions in enabling QI, and predicts unprecedented interactions…

Quantum Physics · Physics 2023-10-10 J. Lim , Y. S. Ang , L. K. Ang , L. J. Wong

In Quantum Illumination (QI), a signal beam initially entangled with an idler beam held at the receiver interrogates a target region bathed in thermal background light. The returned beam is measured jointly with the idler in order to…

Quantum Physics · Physics 2020-07-14 Ranjith Nair , Mile Gu

We investigate laser-induced quantum interference phenomena in superradiance processes and in an ensemble of initially excited $\Lambda-$type closely packed three-level emitters. The lower doublet levels are pumped with a coherent laser…

Quantum Physics · Physics 2017-12-20 Ni Cui , Mihai A. Macovei

Light is a key information carrier, enabling worldwide high-speed data transmission through a telecommunication fibre network. This information-carrying capacity can be extended to transmitting quantum information (QI) by encoding it in…

Quantum Physics · Physics 2024-07-22 Filip Sośnicki , Michał Mikołajczyk , Ali Golestani , Michał Karpiński

Quantum illumination (QI) is a quantum sensing protocol mainly for target detection which uses entangled signal-idler photon pairs to enhance the detection efficiency of low-reflectivity objects immersed in thermal noisy environments.…

Quantum Physics · Physics 2021-05-26 Qizhi Cai , Jinkun Liao , Bohai Shen , Guangcan Guo , Qiang Zhou

A quantum receiver is an essential element of quantum illumination (QI) which outperforms its classical counterpart, called classical-illumination (CI). However, there are only few proposals for realizable quantum receiver, which exploits…

Quantum Physics · Physics 2021-02-08 Yonggi Jo , Sangkyung Lee , Yong Sup Ihn , Zaeill Kim , Su-Yong Lee

In this work we report a quantum interference mediated control of the resonance profiles in a generic three-level system and investigate its effect on key quantum interference (QI) phenomena. Namely in a three level configuration with…

Atomic Physics · Physics 2011-11-16 Konstantin E. Dorfman , Pankaj K. Jha , Sumanta Das

Quantum illumination (QI) and quantum radar have emerged as potentially groundbreaking technologies, leveraging the principles of quantum mechanics to revolutionise the field of remote sensing and target detection. The protocol,…

Quantum Physics · Physics 2024-08-02 Athena Karsa , Alasdair Fletcher , Gaetana Spedalieri , Stefano Pirandola

Quantum illumination is an entanglement-based target detection protocol that provides quantum advantages despite the presence of entanglement-breaking noise. However, the advantage of traditional quantum illumination protocols is limited to…

Quantum Physics · Physics 2024-06-26 Xiaobin Zhao , Zheshen Zhang , Quntao Zhuang

Based on tight-binding model and a generalized Green's function method in Landauer-B\"uttiker formalism, the effects of quantum interference (QI) on the noise power and Fano factor of an armchair graphene nanoribbon (aGNR) sandwiched…

Mesoscale and Nanoscale Physics · Physics 2015-01-23 A. Ahmadi Fouladi , Javad Vahedi

Quantum illumination (QI) is a revolutionary photonic quantum sensing paradigm that enhances the sensitivity of photodetection in noisy and lossy environments. The QI concept has been recently used to propose a quantum backscatter…

Information Theory · Computer Science 2017-07-11 Riku Jäntti , Roberto Di Candia , Ruifeng Duan , Kalle Ruttik

A three level ladder system is analyzed and the coherence of initially electric-dipole forbidden transition is calculated. Due to the presence of two laser fields the initially dipole forbidden transition becomes dynamically permitted due…

Optics · Physics 2014-02-13 Gennady A. Koganov , Reuben Shuker

Quantum interference (QI) effects in molecular junctions may be used to obtain large thermoelectric responses. We study the electrical conductance G and the thermoelec- tric response of a series of molecules featuring a quinoid core using…

Mesoscale and Nanoscale Physics · Physics 2015-07-02 M. Strange , J. S. Seldenthuis , C. J. O. Verzijl , J. M. Thijssen , G. C. Solomon

In a quantum illumination (QI) protocol, the task is to detect the presence of the target which is typically modelled by a partially reflecting beam splitter. We analyze the performance of QI when the target absorbs part of the light that…

Quantum Physics · Physics 2021-11-02 Rivu Gupta , Saptarshi Roy , Tamoghna Das , Aditi Sen De

Destructive quantum interference (QI) has been a source of interest as a new paradigm for molecular electronics as the electronic conductance is widely dependent on the occurrence or absence of destructive QI effects. In order to interpret…

Mesoscale and Nanoscale Physics · Physics 2022-09-23 O. Sengul , A. Valli , R. Stadler

In this paper, we generalized the quantum frequency mixing technology to a ladder-type four-level system and studied its effect on electromagnetically induced transparency spectra. We found a secondary splitting of Autler-Townes splitting…

Quantum Physics · Physics 2026-01-29 Sheng-Xian Xiao , Tao Wang

Although it is widely accepted that classical information cannot travel faster than the speed of light in vacuum, the behavior of quantum correlations and quantum information propagating through actively-pumped fast-light media has not been…

We observe dressed states and quantum interference effects in a strongly driven three-level quantum dot ladder system. The effect of a strong coupling field on one dipole transition is measured by a weak probe field on the second dipole…

Materials Science · Physics 2009-11-13 B. D. Gerardot , D. Brunner , P. A. Dalgarno , K. Karrai , A. Badolato , P. M. Petroff , R. J. Warburton
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