1.7k citations · 12.1k across the 99 of their papers we have counts for
16 papers · 1 filter
Bose polarons as relativistic Unruh-DeWitt detectors: Entanglement harvesting from Bose-Einstein condensates
T. Rick Perche, Francesco Gozzini, Markus K. Oberthaler
We show that a bound impurity in a Bose-Einstein condensate can be directly mapped to an Unruh-DeWitt detector interacting with a relativistic quantum field. We provide explicit ex…
Emulating quantum computation with artificial neural networks
Christian Pehle, Karlheinz Meier, Markus Oberthaler +1
We demonstrate, that artificial neural networks (ANN) can be trained to emulate single or multiple basic quantum operations. In order to realize a quantum state, we implement a nov…
Quenches near criticality of the quantum Ising chain---power and limitations of the discrete truncated Wigner approximation
Stefanie Czischek, Martin Gärttner, Markus Oberthaler +2
The semi-classical discrete truncated Wigner approximation (dTWA) has recently been proposed as a simulation method for spin- systems. While it appears to provide a powerful a…
Quantum metrology with nonclassical states of atomic ensembles
Luca Pezzè, Augusto Smerzi, Markus K. Oberthaler +2
Quantum technologies exploit entanglement to revolutionize computing, measurements, and communications. This has stimulated the research in different areas of physics to engineer a…
Observing the emergence of chaos in a many-particle quantum system
J. Tomkovič, W. Muessel, H. Strobel +4
Accessing the connection between classical chaos and quantum many-body systems has been a long-standing experimental challenge. Here, we investigate the onset of chaos in periodica…
Fisher Information and entanglement of non-Gaussian spin states
Helmut Strobel, Wolfgang Muessel, Daniel Linnemann +5
Entanglement is the key quantum resource for improving measurement sensitivity beyond classical limits. However, the production of entanglement in mesoscopic atomic systems has bee…