Protecting the Quantum Interference of Cat States by Phase-Space Compression

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F23%3A73619034" target="_blank" >RIV/61989592:15310/23:73619034 - isvavai.cz</a>

Výsledek na webu

<a href="https://journals.aps.org/prx/abstract/10.1103/PhysRevX.13.021004" target="_blank" >https://journals.aps.org/prx/abstract/10.1103/PhysRevX.13.021004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevX.13.021004" target="_blank" >10.1103/PhysRevX.13.021004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Protecting the Quantum Interference of Cat States by Phase-Space Compression

Popis výsledku v původním jazyce

Cat states, with their unique phase-space interference properties, are ideal candidates for understanding fundamental principles of quantum mechanics and performing key quantum information processing tasks. However, they are highly susceptible to photon loss, which inevitably diminishes their quantum non-Gaussian features. Here, we protect these non-Gaussian features against photon loss by compressing the phase-space distribution of a cat state.We achieve this compression with a deterministic technique based on the echoed conditional displacement operation in a circuit QED device.We present a versatile technique for creating robust non-Gaussian continuous-variable resource states in a highly linear bosonic mode and manipulating their phase-space distribution to achieve enhanced resilience against photon loss. Suchcompressed cat states offer an attractive avenue for obtaining new insights into quantum foundations and quantum metrology, as well as for developing inherently more protected bosonic code words for quantum error correction.

Název v anglickém jazyce

Protecting the Quantum Interference of Cat States by Phase-Space Compression

Popis výsledku anglicky

Cat states, with their unique phase-space interference properties, are ideal candidates for understanding fundamental principles of quantum mechanics and performing key quantum information processing tasks. However, they are highly susceptible to photon loss, which inevitably diminishes their quantum non-Gaussian features. Here, we protect these non-Gaussian features against photon loss by compressing the phase-space distribution of a cat state.We achieve this compression with a deterministic technique based on the echoed conditional displacement operation in a circuit QED device.We present a versatile technique for creating robust non-Gaussian continuous-variable resource states in a highly linear bosonic mode and manipulating their phase-space distribution to achieve enhanced resilience against photon loss. Suchcompressed cat states offer an attractive avenue for obtaining new insights into quantum foundations and quantum metrology, as well as for developing inherently more protected bosonic code words for quantum error correction.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/GX21-13265X" target="_blank" >GX21-13265X: Kvantová ne-Gaussovská koherence</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Physical Review X

ISSN

2160-3308

e-ISSN

—

Svazek periodika

13

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

"021004-1"-"021004-13"

Kód UT WoS článku

000970201900001

EID výsledku v databázi Scopus

2-s2.0-85153889233