9 citations · 42 across the 19 of their papers we have counts for
5 papers · 1 filter
Fighting Exponentially Small Gaps by Counterdiabatic Driving
András Grabarits, Federico Balducci, Adolfo del Campo
We investigate the efficiency of approximate counterdiabatic driving (CD) in accelerating adiabatic passage through exponentially small gaps. First, we analyze a minimal spin-glass…
Non-Adiabatic Quantum Optimization for Crossing Quantum Phase Transitions
András Grabarits, Federico Balducci, Barry C. Sanders +1
We consider the optimal driving of the ground state of a many-body quantum system across a quantum phase transition in finite time. In this context, excitations caused by the break…
Annealing Dynamics of Regular Rotor Networks: Universality and Its Breakdown
András Grabarits, Gaetano Sammartino, Adolfo del Campo
The spin-vector Monte Carlo model is widely used as a benchmark for the classicality of quantum annealers but severely restricts the time evolution. The spin-vector Langevin (SVL)…
Kibble-Zurek Mechanism and Beyond: Lessons from a Holographic Superfluid Disk
Chuan-Yin Xia, Hua-Bi Zeng, András Grabarits +1
The superfluid phase transition dynamics and associated spontaneous vortex formation with the crossing of the critical temperature in a disk geometry is studied in the framework of…
Quantum Chaos in Random Ising Networks
András Grabarits, Kasturi Ranjan Swain, Mahsa Seyed Heydari +3
We report a systematic investigation of universal quantum chaotic signatures in the transverse field Ising model on an Erdős-Rényi network. This is achieved by studying local spect…