Generation of optical Schrödinger cat states in intense laser–matter interactions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00554118" target="_blank" >RIV/68378271:_____/21:00554118 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1038/s41567-021-01317-w" target="_blank" >https://doi.org/10.1038/s41567-021-01317-w</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41567-021-01317-w" target="_blank" >10.1038/s41567-021-01317-w</a>

Result language

angličtina

Original language name

Generation of optical Schrödinger cat states in intense laser–matter interactions

Original language description

The physics of intense laser–matter interactions1,2 is described by treating the light pulses classically, anticipating no need to access optical measurements beyond the classical limit. However, the quantum nature of the electromagnetic fields is always present3. Here we demonstrate that intense laser–atom interactions may lead to the generation of highly non-classical light states. This was achieved by using the process of high-harmonic generation in atoms4,5, in which the photons of a driving laser pulse of infrared frequency are upconverted into photons of higher frequencies in the extreme ultraviolet spectral range. The quantum state of the fundamental mode after the interaction, when conditioned on the high-harmonic generation, is a so-called Schrödinger cat state, which corresponds to a superposition of two distinct coherent states: the initial state of the laser and the coherent state reduced in amplitude that results from the interaction with atoms.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

<a href="/en/project/GC20-24805J" target="_blank" >GC20-24805J: Attosecond nanophysics at plasmonic nanostructures</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Nature Physics

ISSN

1745-2473

e-ISSN

1745-2481

Volume of the periodical

17

Issue of the periodical within the volume

OCT

Country of publishing house

GB - UNITED KINGDOM

Number of pages

5

Pages from-to

1104-1108

UT code for WoS article

000686522600002

EID of the result in the Scopus database

2-s2.0-85110931964