Zobrazeno 1 - 10
of 1 243
pro vyhledávání: '"A Trombettoni"'
We investigate the dynamics of one-dimensional interacting bosons in an optical lattice after a sudden quench in the Bose-Hubbard (BH) and sine-Gordon (SG) regimes. While in higher dimension, the Mott-superfluid phase transition is observed for weakl
Externí odkaz:
http://arxiv.org/abs/2411.06507
Autor:
Cassettari, D., Marchukov, O. V., Carruthers, B., Kendell, H., Ruhl, J., Pierre, B. De Mitchell, Zara, C., Weidner, C. A., Trombettoni, A., Olshanii, M., Mussardo, G.
In this paper we study transitions of atoms between energy levels of several number-theory-inspired atom potentials, under the effect of time-dependent perturbations. First, we simulate in detail the case of a trap whose one-particle spectrum is give
Externí odkaz:
http://arxiv.org/abs/2410.13988
The critical behaviour of the classical (thermal) phase transition (CPT) of the Ising model is identical to the quantum phase transition (QPT) of the $\phi^4$ Quantum Field Theory (QFT). Our goal in this work is to map out the QPT-CPT diagram of the
Externí odkaz:
http://arxiv.org/abs/2407.20704
The behaviour of the helicity modulus has been frequently employed to investigate the onset of the topological order characterizing the low-temperature phase of the two-dimensional XY-model. We here present how the analysis based on the use of this k
Externí odkaz:
http://arxiv.org/abs/2407.11507
Spontaneous collapse models, which are phenomenological mechanisms introduced and designed to account for dynamical wavepacket reduction, are attracting a growing interest from the community interested in the characterisation of the quantum-to-classi
Externí odkaz:
http://arxiv.org/abs/2407.09304
In this paper we show how to measure in the setting of digital quantum simulations the reflection and transmission amplitudes of the one-dimensional scattering of a particle with a short-ranged potential. The main feature of the protocol is the coupl
Externí odkaz:
http://arxiv.org/abs/2407.01669
We study the effect of competing interactions on ensemble inequivalence. We consider a one-dimensional Ising model with ferromagnetic mean-field interactions and short-range couplings which can be either ferromagnetic or antiferromagnetic. Despite th
Externí odkaz:
http://arxiv.org/abs/2406.03826
Publikováno v:
Phys. Lett. B 858 (2024) 139051
Time-evolution of the Universe as described by the Friedmann equation can be coupled to equations of motion of matter fields. Quantum effects may be incorporated to improve these classical equations of motion by the renormalization group (RG) running
Externí odkaz:
http://arxiv.org/abs/2405.07846
Autor:
Hernández-Gómez, Santiago, Poggiali, Francesco, Cappellaro, Paola, Cataliotti, Francesco S., Trombettoni, Andrea, Fabbri, Nicole, Gherardini, Stefano
Exchange energy statistics between two bodies at different thermal equilibrium obey the Jarzynski-W\'ojcik fluctuation theorem. The corresponding energy scale factor is the difference of the inverse temperatures associated to the bodies at equilibriu
Externí odkaz:
http://arxiv.org/abs/2404.05310
The famous Goldbach conjecture states that any even natural number $N$ greater than $2$ can be written as the sum of two prime numbers $p$ and $p'$, with $p \, , p'$ referred to as a Goldbach pair. In this article we present a quantum analogue protoc
Externí odkaz:
http://arxiv.org/abs/2404.00517