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  Local fluctuations in cavity control of ferroelectricity

Curtis, J. B., Michael, M., & Demler, E. (2023). Local fluctuations in cavity control of ferroelectricity. Physical Review Research, 5(4): 043118. doi:10.1103/PhysRevResearch.5.043118.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000C-86D9-8 Version Permalink: https://hdl.handle.net/21.11116/0000-000D-E289-9
Genre: Journal Article

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PhysRevResearch.5.043118.pdf (Publisher version), 2MB
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2023
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© the Author(s). Published by the American Physical Society
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https://arxiv.org/abs/2301.01884 (Preprint)
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https://doi.org/10.1103/PhysRevResearch.5.043118 (Publisher version)
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 Creators:
Curtis, J. B.1, 2, Author
Michael, M.3, Author           
Demler, E.4, Author
Affiliations:
1College of Letters and Science, University of California, ou_persistent22              
2Department of Physics, Harvard University, ou_persistent22              
3Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
4Institute for Theoretical Physics, ETH Zurich, ou_persistent22              

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 Abstract: Control of quantum matter through resonant electromagnetic cavities is a promising route towards establishing control over material phases and functionalities. Quantum paraelectric insulators—materials that are nearly ferroelectric—are particularly promising candidate systems for this purpose since they have strongly fluctuating collective modes that directly couple to the electric field. In this work, we explore this possibility in a system comprised of a quantum paraelectric sandwiched between two high-quality metal mirrors, realizing a Fabry-Perot-type cavity. By developing a full multimode, continuum description we are able to study the effect of the cavity in a spatially resolved way for a variety of system sizes and temperatures. Surprisingly, we find that once a continuum of transverse modes is included the cavity ends up suppressing ferroelectric correlations. This effect arises from the screening out of transverse photons at the cavity boundaries and, as a result, is confined to the surface of the paraelectric sample. We also explore the temperature dependence of this effect and find it vanishes at high temperatures, indicating it is a purely quantum mechanical effect. We connect our result to calculations of Casimir and Van der Waals forces, which we argue are closely related to the dipolar fluctuations in the quantum paraelectric. Our results are based on a general formalism and are expected to be widely applicable, paving the way towards studies of the quantum electrodynamics of heterostructures featuring multiple materials and phases.

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Language(s): eng - English
 Dates: 2023-08-232023-02-012023-08-292023-11-06
 Publication Status: Published online
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: arXiv: 2301.01884
DOI: 10.1103/PhysRevResearch.5.043118
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Project name : We would like to acknowledge invaluable discussions with Y. Ashida, A. Disa, U. Staub, P. Narang, A. İmamoğlu, D. Hsieh, P. Dolgirev, A. Lindenberg, N. Peter Armitage, J. Sous, M. Daschner, A. Cavalleri, J. Faist, D. Jaksch, M. Fogler, I. Esterlis, and J. Philbin. J.B.C. is an HQI Prize Postdoctoral Fellow and gratefully acknowledges support from the Harvard Quantum Initiative. E.D. acknowledges support from the ARO Grant No. W911NF-21-1-0184 and the SNSF project 200021_212899.
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Title: Physical Review Research
Source Genre: Journal
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Publ. Info: College Park, Maryland, United States : American Physical Society (APS)
Pages: - Volume / Issue: 5 (4) Sequence Number: 043118 Start / End Page: - Identifier: ISSN: 2643-1564
CoNE: https://pure.mpg.de/cone/journals/resource/2643-1564