Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Billam, Thomas"'
We introduce a novel approach to the three-dimensional reconstruction of superfluid vortex filaments using deep convolutional neural networks. Superfluid vortices, quantum mechanical phenomena of immense scientific interest, are challenging to image
Externí odkaz:
http://arxiv.org/abs/2312.14815
Autor:
Jenkins, Alexander C., Moss, Ian G., Billam, Thomas P., Hadzibabic, Zoran, Peiris, Hiranya V., Pontzen, Andrew
Cold-atom analog experiments are a promising new tool for studying relativistic vacuum decay, enabling one to empirically probe early-Universe theories in the laboratory. However, existing proposals place stringent requirements on the atomic scatteri
Externí odkaz:
http://arxiv.org/abs/2311.02156
When a two-dimensional system undergoes a rapid quench from a disordered to an ordered phase, it does not order instantly but instead relaxes towards equilibrium over time. During this relaxation, the dynamical scaling hypothesis predicts that the le
Externí odkaz:
http://arxiv.org/abs/2310.16514
A two-component quantum droplet is an attractive mixture of ultracold bosons stabilised against collapse by quantum fluctuations. Commonly, two-component quantum droplets are studied within a balanced mixture. However, the mixture can be imbalanced r
Externí odkaz:
http://arxiv.org/abs/2309.04300
Autor:
Zenesini, Alessandro, Berti, Anna, Cominotti, Riccardo, Rogora, Chiara, Moss, Ian G., Billam, Thomas P., Carusotto, Iacopo, Lamporesi, Giacomo, Recati, Alessio, Ferrari, Gabriele
Publikováno v:
Nat. Phys. 20, 558 (2024)
In quantum field theory, the decay of an extended metastable state into the real ground state is known as ``false vacuum decay'' and it takes place via the nucleation of spatially localized bubbles. Despite the large theoretical effort to estimate th
Externí odkaz:
http://arxiv.org/abs/2305.05225
Cold atomic gases offer the prospect of simulating the physics of the very early universe in the laboratory. In the condensate phase, the gas is described by a field theory with key features of high energy particle theory. This paper describes a thre
Externí odkaz:
http://arxiv.org/abs/2212.03621
Quantum droplets are a quantum analogue to classical fluid droplets in that they are self-bound and display liquid-like properties -- such as incompressibility and surface tension -- though their stability is the result of quantum fluctuations. One o
Externí odkaz:
http://arxiv.org/abs/2209.04318
We propose an ultracold atom analogue of early universe vacuum decay using all three states of a spin-1 Bose gas. We consider a one-dimensional system with both radio frequency and optical Raman coupling between internal states. An advantage of our p
Externí odkaz:
http://arxiv.org/abs/2108.05740
Bright solitons in atomic Bose--Einstein condensates are strong candidates for high precision matter-wave interferometry, as their inherent stability against dispersion supports long interrogation times. An analog to a beam splitter is then a narrow
Externí odkaz:
http://arxiv.org/abs/2104.11511
We perform an analysis of the supercooled state in an analogue of an early universe phase transition based on a one dimensional, two-component Bose gas with time-dependent interactions. We demonstrate that the system behaves in the same way as a ther
Externí odkaz:
http://arxiv.org/abs/2104.07428