Zobrazeno 1 - 10
of 326
pro vyhledávání: '"Nair, Ranjith"'
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 characterisation of TPA parameters are challenging due to their inheren
Externí odkaz:
http://arxiv.org/abs/2311.12555
In covert target detection, Alice attempts to send optical or microwave probes to determine the presence or absence of a weakly-reflecting target embedded in thermal background radiation within a target region, while striving to remain undetected by
Externí odkaz:
http://arxiv.org/abs/2310.11013
Autor:
Nair, Ranjith, Gu, Mile
We obtain universal (i.e., probe and measurement-independent) performance bounds on ancilla-assisted quantum sensing of multiple parameters of phase-covariant optical channels under energy and mode-number constraints. We first show that for any such
Externí odkaz:
http://arxiv.org/abs/2306.15256
Autor:
Tanggara, Andrew, Nair, Ranjith, Assad, Syed, Narasimhachar, Varun, Tserkis, Spyros, Thompson, Jayne, Lam, Ping Koy, Gu, Mile
Publikováno v:
Quantum 8, 1218 (2024)
The amount of information that a noisy channel can transmit has been one of the primary subjects of interest in information theory. In this work we consider a practically-motivated family of optical quantum channels that can be implemented without an
Externí odkaz:
http://arxiv.org/abs/2304.12365
Publikováno v:
In Surfaces and Interfaces November 2024 54
Publikováno v:
In Advanced Powder Technology November 2024 35(11)
Publikováno v:
PRL 128, 180506 (2022)
Phase-insensitive optical amplifiers uniformly amplify each quadrature of an input field and are of both fundamental and technological importance. We find the quantum limit on the precision of estimating the gain of a quantum-limited phase-insensitiv
Externí odkaz:
http://arxiv.org/abs/2112.04328
Publikováno v:
In Optical Materials October 2024 156
Publikováno v:
In International Journal of Hydrogen Energy 27 June 2024 72:1169-1183