112 citations · 149 across the 9 of their papers we have counts for
9 papers
Counterdiabatic driving for random-gap Landau-Zener transitions
Georgios Theologou, Mikkel F. Andersen, Sandro Wimberger
The Landau--Zener (LZ) model describes a two-level quantum system that undergoes an avoided crossing. In the adiabatic limit, the transition probability vanishes. An auxiliary cont…
Comparison of Two Optimization Methods for a Rydberg Quantum Gate
Luis S. Yagüe Bosch, Sandro Wimberger
A shortcut-to-adiabaticity is compared with a numerically optimized protocol for implementing a high-fidelity quantum gate on Rydberg atoms. The counterdiabatic method offers an an…
Reversing adiabatic state preparation in few-level quantum systems
L. Romanato, N. Eshaqi-Sani, L. Lepori +3
We present a detailed study of an adiabatic state preparation in an effective three-level quantum system. States can be prepared with high speed and fidelity by adding a counterdia…
Multipassage Landau-Zener tunneling oscillations in transverse/longitudinal dual dressing of atomic qubits
Alessandro Fregosi, Carmela Marinelli, Carlo Gabbanini +7
We investigate the time evolution of a non-resonant dressed-atom qubit in an XZ original configuration. It is composed of two electromagnetic fields, one oscillating parallel and t…
Comparison of two different integration methods for the (1+1)-Dimensional Schrödinger-Poisson Equation
Nico Schwersenz, Victor Loaiza, Tim Zimmermann +2
We compare two different numerical methods to integrate in time spatially delocalized initial densities using the Schrödinger-Poisson equation system as the evolution law. The basi…
Spontaneous-emission induced ratchet in atom-optics kicked rotor quantum walks
Nikolai Bolik, Sandro Wimberger
Quantum walks have gained significant attention over the past decades, mainly because of their variety of implementations and applications. Atomic quantum walks are typically subje…
Quantum control by effective counterdiabatic driving
Francesco Petiziol, Florian Mintert, Sandro Wimberger
We review a scheme for the systematic design of quantum control protocols based on shortcuts to adiabaticity in few-level quantum systems. The adiabatic dynamics is accelerated by…
Shortcut-to-Adiabatic Controlled-Phase Gate in Rydberg Atoms
Luis S. Yagüe Bosch, Tim Ehret, Francesco Petiziol +2
A shortcut-to-adiabatic protocol for the realization of a fast and high-fidelity controlled-phase gate in Rydberg atoms is developed. The adiabatic state transfer, driven in the hi…
Negative differential conductivity in an interacting quantum gas
Ralf Labouvie, Bodhaditya Santra, Simon Heun +2
Negative differential conductivity (NDC) is a widely exploited effect in modern electronic components. Here, a proof-of-principle is given for the observation of NDC in a quantum t…