Transfer of information through waveguides near an exceptional point
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F21%3A00544031" target="_blank" >RIV/61389021:_____/21:00544031 - isvavai.cz</a>
Result on the web
<a href="https://journals.aps.org/pra/abstract/10.1103/PhysRevA.103.033518" target="_blank" >https://journals.aps.org/pra/abstract/10.1103/PhysRevA.103.033518</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.103.033518" target="_blank" >10.1103/PhysRevA.103.033518</a>
Alternative languages
Result language
angličtina
Original language name
Transfer of information through waveguides near an exceptional point
Original language description
The propagation of light in a pair of waveguides (WGs) with a complex index of refraction is studied, when the WG parameters are adjusted in such a way as to bring the system extremely close to an exceptional point (EP) while slightly breaking PT symmetry. We find that this breaking of PT symmetry does not affect the structure of the output signals, although the corresponding propagation constants become slightly complex. Only for sufficiently strong breaking of the PT symmetry the signal is enhanced or suppressed in a substantial manner. Moreover, due to the EP it is impossible to tap light into another WG and thus read the transmitted signal without destroying completely the nodal structure and changing dramatically the intensity of the signal.
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
10306 - Optics (including laser optics and quantum optics)
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
2021
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
103
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
033518
UT code for WoS article
000646062900004
EID of the result in the Scopus database
2-s2.0-85103658632