Zobrazeno 1 - 10
of 15 462
pro vyhledávání: '"HOMODYNE detection"'
Autor:
Alshaer, Nancy1 (AUTHOR) n.a.alshaer@f-eng.tanta.edu.eg, Ismail, Tawfik2,3 (AUTHOR) tismail@nu.edu.eg, Mahmoud, Haitham4 (AUTHOR) n.a.alshaer@f-eng.tanta.edu.eg
Publikováno v:
Sensors (14248220). Aug2024, Vol. 24 Issue 16, p5201. 15p.
We investigate the role of weak-field homodyne (WF) measurement for quantum communications over a lossy bosonic channel with coherent state encoding. This kind of receiver employs photon-number resolving (PNR) detectors with finite resolution and low
Externí odkaz:
http://arxiv.org/abs/2405.14310
Autor:
McIntyre, Z. M., Coish, W. A.
Publikováno v:
Phys. Rev. A 110, L010602 (2024)
We present measurement schemes that do not rely on photon-number resolving detectors, but that are nevertheless optimal for estimating a differential phase shift in interferometry with either an entangled coherent state or a qubit-which-path state (w
Externí odkaz:
http://arxiv.org/abs/2405.13265
Akademický článek
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Publikováno v:
Phys. Rev. A 107, 022423 (2023)
Homodyne measurement is a crucial tool widely used to address continuous variables for bosonic quantum systems. While an ideal homodyne detection provides a powerful analysis, e.g. to effectively measure quadrature amplitudes of light in quantum opti
Externí odkaz:
http://arxiv.org/abs/2401.01228
Autor:
Tsuji, Kenji, Ishikawa, Tomohiro, Komori, Kentaro, Nagano, Koji, Enomoto, Yutaro, Michimura, Yuta, Umemura, Kurumi, Shimizu, Ryuma, Wu, Bin, Iwaguchi, Shoki, Kawasaki, Yuki, Furusawa, Akira, Kawamura, Seiji
Quantum locking using optical spring and homodyne detection has been devised to reduce quantum noise that limits the sensitivity of DECIGO, a space-based gravitational wave antenna in the frequency band around 0.1 Hz for detection of primordial gravi
Externí odkaz:
http://arxiv.org/abs/2310.15522
The simultaneous two-parameter estimation problem in single squeezed-light Mach-Zehnder interferometer with double-port homodyne detection is investigated in this work. The analytical form of the two-parameter quantum Cramer-Bao bound defined by the
Externí odkaz:
http://arxiv.org/abs/2310.08856
Akademický článek
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Autor:
Conlon, Lorcan O., Walsh, Angus, Hua, Yuhan, Thearle, Oliver, Vogl, Tobias, Eilenberger, Falk, Lam, Ping Koy, Assad, Syed M.
Publikováno v:
New J. Phys. 26, 053003 (2024)
Quantum mechanics has withstood every experimental test thus far. However, it relies on ad-hoc postulates which require experimental verification. Over the past decade there has been a great deal of research testing these postulates, with numerous te
Externí odkaz:
http://arxiv.org/abs/2308.03446
Superconducting nanowire single-photon detectors (SNSPDs) have been widely used to study the discrete nature of quantum states of light in the form of photon-counting experiments. We show that SNSPDs can also be used to study continuous variables of
Externí odkaz:
http://arxiv.org/abs/2307.16672