Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Bruno Juliá-Díaz"'
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-8 (2024)
Abstract Fractal lattices are self-similar structures with repeated patterns on different scales. Quantum transport through such structures is subtle due to the possible co-existence of localized and extended states. Here, we study the dynamical prop
Externí odkaz:
https://doaj.org/article/45a9194c9a444ee789ba7cb721daf348
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p 033120 (2024)
A nondispersive quantum pendulum is presented. The proposed setup consists of an ultracold atomic cloud, featuring attractive interatomic interactions, loaded into a tilted ring potential. The classical and quantum domains are switched on by tuned in
Externí odkaz:
https://doaj.org/article/c1a7aa05485f4677bde664892462c771
Publikováno v:
Frontiers in Quantum Science and Technology, Vol 2 (2023)
We report on a quantum mechanics popularisation software, Eigengame, developed to get general audiences to play with key concepts in quantum mechanics, i.e., the wave function, the quantization of energy, the probability density and, to some extent,
Externí odkaz:
https://doaj.org/article/3197c4f4a9a740a39a72ce819e73438f
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p L042024 (2022)
We consider interacting one-dimensional bosons in the universal low-energy regime. The interactions consist of a combination of attractive and repulsive parts that can stabilize quantum gases, droplets, and liquids. In particular, we study the role o
Externí odkaz:
https://doaj.org/article/f7876b894e524c30840cfc006e80cbe3
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-9 (2016)
Spin models appear in several fields of physics and beyond, but solving many of them is a task for which no general efficient classical algorithm is known to exist. Here the authors demonstrate how a variety of spin glass models can be implemented an
Externí odkaz:
https://doaj.org/article/98a3fda309784107b3d5ed8098a77d91
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033016 (2020)
We investigate the leading area-law contribution to entanglement entropy in a system described by a general Lagrangian with O(2) symmetry containing first- and second-order time derivatives, namely, breaking the Lorentz invariance. We establish a con
Externí odkaz:
https://doaj.org/article/72c4989c032245c6a2804bea8f7ee5b6
Static and Dynamic Properties of a Few Spin 1/2 Interacting Fermions Trapped in a Harmonic Potential
Publikováno v:
Mathematics, Vol 8, Iss 7, p 1196 (2020)
We provide a detailed study of the properties of a few interacting spin 1 / 2 fermions trapped in a one-dimensional harmonic oscillator potential. The interaction is assumed to be well represented by a contact delta potential. Numerical results obtai
Externí odkaz:
https://doaj.org/article/502540a48a4447f0b1e39d1f302b20fa
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 022008 (2020)
We demonstrate the existence of quantum droplets in two-component one-dimensional Bose-Hubbard chains. The droplets exist for any strength of repulsive intraspecies interactions provided they are balanced by comparable attractive interspecies interac
Externí odkaz:
https://doaj.org/article/765a1fd1794f4780825dc21de9ac3d8b
Publikováno v:
Condensed Matter, Vol 3, Iss 1, p 9 (2018)
The system of two interacting bosons in a two-dimensional harmonic trap is compared with the system consisting of two noninteracting fermions in the same potential. In particular, we discuss how the properties of the ground state of the system, e.g.,
Externí odkaz:
https://doaj.org/article/6d3cff8f04404084ac13b8b8cc161d21
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Universitat Politècnica de Catalunya (UPC)
We study the properties of a single impurity in a dilute Bose gas, a Bose polaron, using the functional renormalization group. We use an ansatz for the effective action motivated by a derivative expansion, and we compute the energies of the attractiv