Journal article
Strong-field interactions between a nanomagnet and a photonic cavity
Physical review letters, Vol.104(7), pp.077202-077202
07/22/2009
DOI: 10.1103/PhysRevLett.104.077202
PMID: 20366911
Abstract
We analyze the interaction of a nanomagnet with a single photonic mode of a microcavity in a fully quantum-mechanical treatment and find that exceptionally large quantum-coherent magnet-photon coupling can be achieved. Coupling terms in excess of several THz are predicted to be achievable in a spherical cavity of ~1 mm radius with a nanomagnet of ~100 nm radius and ferromagnetic resonance frequency of ~200 GHz. Eigenstates of the magnet-photon system correspond to entangled states of spin orientation and photon number, in which over 10^5 values of each quantum number are represented; conversely initial (coherent) states of definite spin and photon number evolve dynamically to produce large oscillations in the microwave power (and nanomagnet spin orientation), and are characterized by exceptionally long dephasing times.
Details
- Title: Subtitle
- Strong-field interactions between a nanomagnet and a photonic cavity
- Creators
- Öney O Soykal - University of IowaM E Flatté - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Physical review letters, Vol.104(7), pp.077202-077202
- DOI
- 10.1103/PhysRevLett.104.077202
- PMID
- 20366911
- NLM abbreviation
- Phys Rev Lett
- ISSN
- 0031-9007
- eISSN
- 1079-7114
- Language
- English
- Date published
- 07/22/2009
- Academic Unit
- Electrical and Computer Engineering; Physics and Astronomy
- Record Identifier
- 9984199768002771
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