Results 41 to 50 of about 130,740 (286)

Gaussian Hypothesis Testing and Quantum Illumination

open access: yesPhysical Review Letters, 2017
v2: 13 pages, 1 figure, final version published in Physical Review ...
Wilde, Mark M.   +3 more
openaire   +6 more sources

Quantum illumination with a generic Gaussian source

open access: yesPhysical Review Research, 2020
With the aim to loosen the entanglement requirements of quantum illumination, we study the performance of a family of Gaussian states at the transmitter, combined with an optimal and joint quantum measurement at the receiver.
Athena Karsa   +3 more
doaj   +1 more source

Large terahertz electric dipole of a single graphene quantum dot

open access: yesPhysical Review Research, 2022
Graphene has recently emerged as an important material for optoelectronic applications owing to its unique properties. Here, we show that graphene is also appealing for the development of THz quantum optics when used for quantum dots.
Simon Messelot   +14 more
doaj   +1 more source

Low-temperature illumination and annealing of ultra-high quality quantum wells

open access: yes, 2014
The effects of low temperature illumination and annealing on fractional quantum Hall (FQH) characteristics of a GaAs/AlGaAs quantum well are investigated. Illumination alone, below 1 K, decreases the density of the 2DEG electrons by more than an order of
Folk, Joshua A.   +7 more
core   +1 more source

Evaluation on quantum illumination radar with quantum limited amplification

open access: yesOptics Express, 2023
Based on Quantum illumination (QI) protocol, researcshers have developed prototypes of quantum radar and demonstrated its quantum enhancement. Nevertheless, there are still difficulties in the practical application for QI radar, especially the trade-off between the detection range and quantum enhancement, as well as the construction of the optimized ...
Rongyu, Wei   +3 more
openaire   +2 more sources

Range Limitations in Microwave Quantum Radar

open access: yesRemote Sensing
This work, written for engineers or managers with no special knowledge of quantum mechanics, nor deep experience in radar, aims to help the scientific, industrial, and governmental community to better understand the basic limitations of proposed ...
Gabriele Pavan, Gaspare Galati
doaj   +1 more source

Adaptive Quantum Optics with Spatially Entangled Photon Pairs

open access: yes, 2018
Light shaping facilitates the preparation and detection of optical states and underlies many applications in communications, computing, and imaging. In this Letter, we generalize light shaping to the quantum domain.
Defienne, Hugo   +2 more
core   +1 more source

Quantum illumination with simple detection [PDF]

open access: yesQuantum Technologies 2020, 2020
We show that by using the non-classical two-mode squeezed vacuum (TMSV) to illuminate an object, quantum correlations contribute to a detectable enhancement even under regimes of high signal loss and background thermal noise. We also consider a realistic measurement scenario with click detectors, along with sequential Bayesian inference; a single click
Yang, Hao   +3 more
openaire   +2 more sources

Entangled coherent states and squeezing in N trapped ions [PDF]

open access: yes, 2002
We consider a resonant bichromatic excitation of N trapped ions that generates displacement and squeezing in their collective motion conditioned to their ionic internal state, producing eventually Scrhodinger cat states and entangled squeezing ...
Filho, R. L. de Matos   +2 more
core   +2 more sources

Maximum advantage of quantum illumination

open access: yesPhysical Review A, 2019
Discriminating between quantum states is a fundamental problem in quantum information protocols. The optimum approach saturates the Helstrom bound, which quantifies the unavoidable error probability of mistaking one state for another. Computing the error probability directly requires complete knowledge and diagonalization of the density matrices ...
Shannon Ray   +3 more
openaire   +3 more sources

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