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Field-dependent superradiant quantum phase transition of molecular magnets in microwave cavities

Stepanenko, D. and Trif, M. and Tsyplyatyev, O. and Loss, D.. (2016) Field-dependent superradiant quantum phase transition of molecular magnets in microwave cavities. Semiconductor Science and Technology , 31 (9). 094003.

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Official URL: http://edoc.unibas.ch/53467/

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Abstract

We study a superradiant quantum phase transition in the model of triangular molecular magnets coupled to the electric component of a microwave cavity field. The transition occurs when the coupling strength exceeds a critical value, dc, which, in sharp contrast to the standard two-level emitters, can be tuned by an external magnetic field. In addition to emitted radiation, the molecules develop an in-plane electric dipole moment at the transition. We estimate that the transition can be detected in state-of-the-art microwave cavities if their electric field couples to a crystal containing a sufficient number of oriented molecules.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss)
UniBasel Contributors:Loss, Daniel
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:IOP Publishing
ISSN:0268-1242
e-ISSN:1361-6641
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:15 Feb 2017 15:10
Deposited On:15 Feb 2017 15:10

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