Nanomechanical state amplifier based on optical inverted pendulum

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F25%3A00637396" target="_blank" >RIV/68081731:_____/25:00637396 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/25:73631291 RIV/00216224:14310/25:00141850

Výsledek na webu

<a href="https://www.nature.com/articles/s42005-025-02193-z" target="_blank" >https://www.nature.com/articles/s42005-025-02193-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s42005-025-02193-z" target="_blank" >10.1038/s42005-025-02193-z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nanomechanical state amplifier based on optical inverted pendulum

Popis výsledku v původním jazyce

A contactless control of mean values and fluctuations of position and velocity of a nanoobject belongs among the key methods needed for ultra-precise nanotechnology and the upcoming quantum technology of macroscopic systems. An analysis of experimental implementations of such a control, including assessments of linearity and the effects of added noise, is required. Here, we present a protocol of linear amplification of mean values and fluctuations along an arbitrary phase space variable and squeezing along the complementary one, referred to as a nanomechanical state amplifier. It utilizes the experimental platform of a single optically levitating nanoparticle and the three-step protocol combines a controlled fast switching of the parabolic trapping potential to an inverted parabolic potential and back to the parabolic potential. The protocol can be sequentially repeated or extended to shape the nanomechanical state appropriately. Experimentally, we achieve amplification of position with a gain of divided by G divided by similar or equal to 2 and a classical squeezing coefficient above 4 dB in as short a timestep as one period of nanoparticle oscillations (7.6 mu s). Amplification in velocity, with the same parameters, squeezes the input noise and enhances force sensing.

Název v anglickém jazyce

Nanomechanical state amplifier based on optical inverted pendulum

Popis výsledku anglicky

A contactless control of mean values and fluctuations of position and velocity of a nanoobject belongs among the key methods needed for ultra-precise nanotechnology and the upcoming quantum technology of macroscopic systems. An analysis of experimental implementations of such a control, including assessments of linearity and the effects of added noise, is required. Here, we present a protocol of linear amplification of mean values and fluctuations along an arbitrary phase space variable and squeezing along the complementary one, referred to as a nanomechanical state amplifier. It utilizes the experimental platform of a single optically levitating nanoparticle and the three-step protocol combines a controlled fast switching of the parabolic trapping potential to an inverted parabolic potential and back to the parabolic potential. The protocol can be sequentially repeated or extended to shape the nanomechanical state appropriately. Experimentally, we achieve amplification of position with a gain of divided by G divided by similar or equal to 2 and a classical squeezing coefficient above 4 dB in as short a timestep as one period of nanoparticle oscillations (7.6 mu s). Amplification in velocity, with the same parameters, squeezes the input noise and enhances force sensing.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

COMMUNICATIONS PHYSICS

ISSN

2399-3650

e-ISSN

2399-3650

Svazek periodika

8

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

276

Kód UT WoS článku

001522048000003

EID výsledku v databázi Scopus

2-s2.0-105010121933