4 citations · 6 across the 6 of their papers we have counts for
6 papers
Dynamical regimes of QAOA gradient response
Zarin Shakibaei, Alexander Schnell
Characterizing the trainability of the Quantum Approximate Optimization Algorithm (QAOA) requires understanding how its gradient landscape changes across circuit parameters and pro…
Adiabatic preparation of a fractional quantum Hall fluid by coherently pumping atoms from a Bose-Einstein condensate
Alberto Tabarelli de Fatis, Christof Weitenberg, Alexander Schnell +2
We propose a protocol to adiabatically prepare a many-particle fractional quantum Hall fluid of bosonic ultracold atoms exploiting a time-dependent coherent coupling of a strongly…
Mixed-State Topology in One-Dimensional Open Floquet Systems
Görkem D. Dinc, Alexander Schnell, Andy M. Martin
We investigate the non-equilibrium topology of the steady state of a periodically driven, dissipative Su-Schrieffer-Heeger (SSH) chain using the ensemble geometric phase (EGP) $ϕ_{…
Quantum tunneling and anti-tunneling across entropic barriers
Paolo Malgaretti, Francesco Petiziol, Alexander Schnell
We study the dynamics of a quantum particle in a constricted two-dimensional channel and analyze how the onset of quantum corrections impacts the (semi-)classical high-temperature…
Effective (Floquet) Lindblad generators from spectral unwinding
Görkem D. Dinc, André Eckardt, Alexander Schnell
A mathematical description of the reduced dynamics of an open quantum system can often be given in terms of a completely positive and trace preserving (CPTP) map, also known as qua…
Global becomes local: Efficient many-body dynamics for global master equations
Alexander Schnell
This work makes progress on the issue of global vs. local master equations. Global master equations like the Redfield master equation (following from standard Born and Markov appro…