Polariton entering a continuum: Giant diffuse polaritonic resonance
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F22%3A00567383" target="_blank" >RIV/61389021:_____/22:00567383 - isvavai.cz</a>
Result on the web
<a href="https://journals.aps.org/pra/pdf/10.1103/PhysRevA.106.L051101" target="_blank" >https://journals.aps.org/pra/pdf/10.1103/PhysRevA.106.L051101</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.106.L051101" target="_blank" >10.1103/PhysRevA.106.L051101</a>
Alternative languages
Result language
angličtina
Original language name
Polariton entering a continuum: Giant diffuse polaritonic resonance
Original language description
Polaritons arise due to a light-matter interaction and have been amply investigated for atoms and molecules in a quantum field. By increasing the coupling between the atom/molecule and the cavity, the upper polariton penetrates into the continuum (i.e., ionization continuum of atoms or molecules or dissociation continuum of molecules) within the standard two-level approach. We investigate what happens to the polaritons in reality. We first show that the upper polariton cannot enter the continuum if the atomic or molecular system itself does not support metastable states, often called resonances, and instead becomes a giant diffuse bound polariton which can be extended in space to any size one wishes. Then, we show how external perturbations can enable such a diffuse polariton to penetrate into the continuum and turn it into a metastable polariton, i.e., into a polaritonic resonance. In order to achieve these results the coupling of the bound states to the continuum induced by the quantum light has to be taken into account. We discuss how such giant diffuse bound polaritons as well as polaritonic resonances including their finite lifetime can be calculated and present explicit numerical examples. The results provide a complete picture of what happens to the upper polariton in the vicinity of the continuum and may be utilized to enhance ionization or dissociation inside the cavity.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Result continuities
Project
<a href="/en/project/GA20-21179S" target="_blank" >GA20-21179S: Observations of exceptional points in atomic physics using XUV laser pulses</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review A
ISSN
2469-9926
e-ISSN
2469-9934
Volume of the periodical
106
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
L051101
UT code for WoS article
000891842800006
EID of the result in the Scopus database
2-s2.0-85143198014