Wigner function for SU(1,1)
Seyfarth U, Klimov AB, De Guise H, Leuchs G, Sanchez-Soto LL (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 4
DOI: 10.22331/Q-2020-09-07-317
Abstract
In spite of their potential usefulness, Wigner functions for systems with SU(1,1) symmetry have not been explored thus far. We address this problem from a physically-motivated perspective, with an eye towards applications in modern metrology. Starting from two independent modes, and after getting rid of the irrelevant degrees of freedom, we derive in a consistent way a Wigner distribution for SU(1,1). This distribution appears as the expectation value of the displaced parity operator, which suggests a direct way to experimentally sample it. We show how this formalism works in some relevant examples. Dedication: While this manuscript was under review, we learnt with great sadness of the untimely passing of our colleague and friend Jonathan Dowling. Through his outstanding scientific work, his kind attitude, and his inimitable humor, he leaves behind a rich legacy for all of us. Our work on SU(1,1) came as a result of long conversations during his frequent visits to Erlangen. We dedicate this paper to his memory.
Authors with CRIS profile
Involved external institutions
Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light
Germany (DE)
Universidad de Guadalajara (UDEG)
Mexico (MX)
Lakehead University
Canada (CA)
Germany (DE)
Universidad de Guadalajara (UDEG)
Mexico (MX)
Lakehead University
Canada (CA)
How to cite
APA:
Seyfarth, U., Klimov, A.B., De Guise, H., Leuchs, G., & Sanchez-Soto, L.L. (2020). Wigner function for SU(1,1). Quantum, 4. https://doi.org/10.22331/Q-2020-09-07-317
MLA:
Seyfarth, Ulrich, et al. "Wigner function for SU(1,1)." Quantum 4 (2020).
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