Parametric tuning of quantum phase transitions in ultracold reactions

VG Sadhasivam, F Suzuki, B Yan… - Nature Communications, 2024 - nature.com
Advances in atomic physics have led to the possibility of a coherent transformation between
ultracold atoms and molecules including between completely bosonic condensates. Such …

Fighting Exponentially Small Gaps by Counterdiabatic Driving

F Balducci, A Grabarits, A del Campo - arxiv preprint arxiv:2410.02520, 2024 - arxiv.org
We investigate the efficiency of approximate counterdiabatic driving (CD) in accelerating
adiabatic passage through a first-order quantum phase transition. Specifically, we analyze a …

Spatial Form Factor for Point Patterns: Homogeneous Poisson Point Process and Coulomb Gas

M Massaro, A del Campo - arxiv preprint arxiv:2410.04816, 2024 - arxiv.org
We introduce a spatial form factor (SFF) for the characterization of spatial patterns
associated with point processes. Specifically, the SFF is defined in terms of the averaged …

Multipartite entanglement in crossing the quantum critical point

HY Sun, ZY Ge, H Fan - Physica Scripta, 2024 - iopscience.iop.org
We investigate the multipartite entanglement for a slow quantum quench crossing a critical
point. We consider the quantum Ising model and the Lipkin-Meshkov-Glick model, which are …

Dynamics of the order parameter in symmetry breaking phase transitions

F Suzuki, WH Zurek - arxiv preprint arxiv:2412.15568, 2024 - arxiv.org
The formation of topological defects in second-order phase transitions can be investigated
by solving partial differential equations for the evolution of the order parameter in space and …

Parametric tuning of dynamical phase transitions in ultracold reactions

VG Sadhasivam, F Suzuki, B Yan… - arxiv preprint arxiv …, 2024 - arxiv.org
Advances in ultracold chemistry have led to the possibility of a coherent transformation
between ultracold atoms and molecules including between completely bosonic …

The energy-frequency diagram of the (1+1)-dimensional oscillon

NV Alexeeva, IV Barashenkov, A Dika… - arxiv preprint arxiv …, 2024 - arxiv.org
Two different methods are used to study the existence and stability of the (1+ 1)-dimensional
$\Phi^ 4$ oscillon. The variational technique approximates it by a periodic function with a set …

Is there Kibble-Zurek scaling of topological defects in first-order phase transitions?

F Zhong - arxiv preprint arxiv:2501.01064, 2025 - arxiv.org
Kibble-Zurek scaling is the scaling of the density of the topological defects formed via the
Kibble-Zurek mechanism with respect to the rate at which a system is cooled across a …