Dipolar Droplets in Quantum Ferrofluids

Información del proyecto

DDQF

Identificador del acuerdo de subvención: 793504

DOI

10.3030/793504

Proyecto finalizado el 25 Agosto 2020

Fecha de la firma de la CE 27 Abril 2018

Fecha de inicio 1 Octubre 2018

Fecha de finalización 1 Diciembre 2020

Financiado con arreglo a

• EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions

Coste total

€ 159 460,80

Aportación de la UE

€ 159 460,80

Coordinado por

GOTTFRIED WILHELM LEIBNIZ UNIVERSITAET HANNOVER
Germany

Objetivo

Cooled to a few billionths of a degree above absolute zero atomic Bose-Einstein condensates (BECs) are some of the cleanest, most flexible, many-body quantum systems available. They have been used to answer fundamental questions for a large variety of physical phenomena with remarkable clarity, as well as for the discovery of new physics. The field is currently in the midst of a revolution, thanks largely to the development of such key technologies as the ability to create dilute BECs of rare-earth elements, realising the quantum ferrofluid in which each atom possesses a large magnetic dipole. Last year, in a dramatic turn of events, an experiment was published in Nature revealing the discovery of an unforeseen, novel phase of matter: the dilute, dipolar quantum liquid. This was created by the self-stabilisation of a collapsing quantum ferrofluid and the subsequent formation of a crystal of long-lived dipolar droplets, with around 1000 atoms per droplet. It has been demonstrated that each droplet is stabilised by quantum fluctuations, presenting a rare opportunity to investigate a dilute system in which the role of quantum fluctuations is dominant, a situation typically reserved for dense matter. We propose to study the exciting new physics resulting from dipolar interactions and quantum fluctuations, with a particular emphasis on the three most intriguing and timely topics in the physics of dipolar gases: (1) roton excitations, (2) quantum droplets, and (3) dipolar supersolids. To answer pivotal questions for these topics we will develop challenging novel methods, including finite-temperature theories and simulations beyond the currently employed local-density approximation. In close collaboration with top experimentalists in the field, this project will pave the way for a new generation of experiments on dipolar gases. This proposal is uniquely positioned to tackle some of the most prominent and timely questions of the field.

Ámbito científico (EuroSciVoc)

• ciencias naturales › ciencias físicas › física cuántica
• ciencias sociales › ciencias políticas › transiciones políticas › revoluciones

Palabras clave

• dipolar Bose-Einstein condensates
• dipolar droplets
• dipole-dipole interactions
• quantum fluctuations
• superfluid
• finite-temperature
• self-trapped gas
• rotons
• roton immiscibility
• binary condensates

Programa(s)

• H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions PROGRAMA PRINCIPAL
  
• H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
  

Tema(s)

• MSCA-IF-2017 - Individual Fellowships
  

Régimen de financiación

MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

Convocatoria de propuestas

H2020-MSCA-IF-2017

Coordinador

GOTTFRIED WILHELM LEIBNIZ UNIVERSITAET HANNOVER

• Aportación neta de la UEn: € 159 460,80
• Dirección: WELFENGARTEN 1 ; 30167 Hannover ; Alemania
• Región: Niedersachsen › Hannover › Region Hannover
• Tipo de actividad: Higher or Secondary Education Establishments
• Coste total: € 159 460,80