6 papers
Entanglement generation in a two-body Schrödinger--Newton model
Marcin PÅodzieÅ, Julia OsÄka-Lenart, Maciej Lewenstein +1
The Schrödinger--Newton (SN) equation provides a semiclassical framework for the evolution of self-gravitating of massive quantum systems. We propose a two-body Schrödinger--Newt…
Nonlocality, Integrability and Quantum Chaos in the Spectrum of Bell Operators
Albert Aloy, Guillem Müller-Rigat, Maciej Lewenstein +2
We introduce a permutationally invariant multipartite Bell inequality for many-body three-level systems and use it to investigate a connection between Bell nonlocality and (lack of…
Infinite multiverses and where to find them?
Anubhav Kumar Srivastava, Pavel P. Popov, Guillem Müller-Rigat +1
Have you ever watched superhero movies like Spider-Man: Into the Spider-Verse? Or played games where your choices create different outcomes? What if we told you that in the real wo…
Geometric filtering effect in expanding Bose-Einstein condensate shells
Andrea Tononi, Maciej Lewenstein, Luis Santos
A shell-shaped Bose-Einstein condensate released from its confinement expands radially both outwards and inwards, displaying a self-interference pattern characterized by a density…
Spatial Leggett-Garg inequalities
Guillem Müller-Rigat, Guillem Müller-Rigat, Donato Farina +2
We formulate a spatial extension of the Leggett-Garg inequality by considering three distant observers locally measuring a many-body system at three subsequent times. The spatial f…
Dimer problem on a spherical surface
A. Tononi, D. S. Petrov, M. Lewenstein
We solve the problem of a dimer moving on a spherical surface and find that its binding energy and wave function are sensitive to the total angular momentum. The dimer gets squeeze…