Magnon squeezing in antiferromagnetic MnF2 and FeF2

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Quantum squeezing of a collective spin-wave excitation or magnon using femtosecond optical pulses has been used to generate correlated pairs of spins with equal and opposite wave vectors in antiferromagnetic MnF2 and FeF2. In the squeezed state, the fluctuations of the magnetization of a crystallogr...

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Autores principales: Zhao, J., Bragas, A.V., Merlin, R., Lockwood, D.J.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10980121_v73_n18_p_Zhao
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_10980121_v73_n18_p_Zhao
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spelling todo:paper_10980121_v73_n18_p_Zhao2023-10-03T16:05:58Z Magnon squeezing in antiferromagnetic MnF2 and FeF2 Zhao, J. Bragas, A.V. Merlin, R. Lockwood, D.J. Quantum squeezing of a collective spin-wave excitation or magnon using femtosecond optical pulses has been used to generate correlated pairs of spins with equal and opposite wave vectors in antiferromagnetic MnF2 and FeF2. In the squeezed state, the fluctuations of the magnetization of a crystallographic unit cell vary periodically in time and are reduced below that of the ground state quantum noise. The results obtained, including their temperature dependence for FeF2, are compared with earlier spontaneous Raman scattering measurements. The squeezing effect is observed to be at least one order of magnitude stronger in FeF2 than in MnF2. © 2006 The American Physical Society. Fil:Bragas, A.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10980121_v73_n18_p_Zhao
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Quantum squeezing of a collective spin-wave excitation or magnon using femtosecond optical pulses has been used to generate correlated pairs of spins with equal and opposite wave vectors in antiferromagnetic MnF2 and FeF2. In the squeezed state, the fluctuations of the magnetization of a crystallographic unit cell vary periodically in time and are reduced below that of the ground state quantum noise. The results obtained, including their temperature dependence for FeF2, are compared with earlier spontaneous Raman scattering measurements. The squeezing effect is observed to be at least one order of magnitude stronger in FeF2 than in MnF2. © 2006 The American Physical Society.
format JOUR
author Zhao, J.
Bragas, A.V.
Merlin, R.
Lockwood, D.J.
spellingShingle Zhao, J.
Bragas, A.V.
Merlin, R.
Lockwood, D.J.
Magnon squeezing in antiferromagnetic MnF2 and FeF2
author_facet Zhao, J.
Bragas, A.V.
Merlin, R.
Lockwood, D.J.
author_sort Zhao, J.
title Magnon squeezing in antiferromagnetic MnF2 and FeF2
title_short Magnon squeezing in antiferromagnetic MnF2 and FeF2
title_full Magnon squeezing in antiferromagnetic MnF2 and FeF2
title_fullStr Magnon squeezing in antiferromagnetic MnF2 and FeF2
title_full_unstemmed Magnon squeezing in antiferromagnetic MnF2 and FeF2
title_sort magnon squeezing in antiferromagnetic mnf2 and fef2
url http://hdl.handle.net/20.500.12110/paper_10980121_v73_n18_p_Zhao
work_keys_str_mv AT zhaoj magnonsqueezinginantiferromagneticmnf2andfef2
AT bragasav magnonsqueezinginantiferromagneticmnf2andfef2
AT merlinr magnonsqueezinginantiferromagneticmnf2andfef2
AT lockwooddj magnonsqueezinginantiferromagneticmnf2andfef2
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