65 citations · 149 across the 9 of their papers we have counts for
9 papers
Enhancing Quantum State Discrimination with Indefinite Causal Order
Spiros Kechrimparis, James Moran, Athena Karsa +2
The standard quantum state discrimination problem can be understood as a communication scenario involving a sender and a receiver following these three steps: (i) the sender encode…
Optimal quantum metrology for two-photon absorption
Athena Karsa, Ranjith Nair, Andy Chia +2
Two-photon absorption (TPA) is a nonlinear optical process with wide-ranging applications from spectroscopy to super-resolution imaging. Despite this, the precise measurement and c…
Quantum Illumination and Quantum Radar: A Brief Overview
Athena Karsa, Alasdair Fletcher, Gaetana Spedalieri +1
Quantum illumination (QI) and quantum radar have emerged as potentially groundbreaking technologies, leveraging the principles of quantum mechanics to revolutionise the field of re…
Noiseless linear amplification in quantum target detection using Gaussian states
Athena Karsa, Masoud Ghalaii, Stefano Pirandola
Quantum target detection aims to utilise quantum technologies to achieve performances in target detection not possible through purely classical means. Quantum illumination is an ex…
Quantum channel position finding using single photons
Athena Karsa, Jacques Carolan, Stefano Pirandola
Channel position finding is the task of determining the location of a single target channel amongst an ensemble of background channels. It has many potential applications, includin…
Classical benchmarking for microwave quantum illumination
Athena Karsa, Stefano Pirandola
Quantum illumination (QI) theoretically promises up to a 6dB error-exponent advantage in target detection over the best classical protocol. The advantage is maximised by a regime w…
Energetic Considerations in Quantum Target Ranging
Athena Karsa, Stefano Pirandola
While quantum illumination (QI) can offer a quantum-enhancement in target detection, its potential for performing target ranging remains unclear. With its capabilities hinging on a…
Quantum Illumination with a generic Gaussian source
Athena Karsa, Gaetana Spedalieri, Quntao Zhuang +1
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 a…
Noisy receivers for quantum illumination
Athena Karsa, Stefano Pirandola
Quantum illumination (QI) promises unprecedented performances in target detection but there are various problems surrounding its implementation. Where target ranging is a concern,…