439 citations · 2.7k across the 54 of their papers we have counts for
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Chaotic spin dynamics of elongated spinor condensates
Jose Reyes-Calderón, Albert Gallemí, Carsten Klempt +1
Elongated spin- condensates present a highly non-trivial local magnetization dynamics, due to the interplay between nonlinear and quantum effects stemming from the inhomogeneous…
Rapid generation and number-resolved detection of spinor Rubidium Bose-Einstein condensates
Cebrail Pür, Mareike Hetzel, Martin Quensen +5
High data acquisition rates and low-noise detection of ultracold neutral atoms present important challenges for the state tomography and interferometric application of entangled qu…
Excited-State Phase Diagram of a Ferromagnetic Quantum Gas
Bernd Meyer-Hoppe, Fabian Anders, Polina Feldmann +2
The ground-state phases of a quantum many-body system are characterized by an order parameter, which changes abruptly at quantum phase transitions when an external control paramete…
Excited-state quantum phase transitions in spinor Bose-Einstein condensates
Polina Feldmann, Carsten Klempt, Augusto Smerzi +2
Excited-state quantum phase transitions (ESQPTs) extend the notion of quantum phase transitions beyond the ground state. They are characterized by closing energy gaps amid the spec…
Simulation of XXZ Spin Models using Sideband Transitions in Trapped Bosonic Gases
Anjun Chu, Johannes Will, Jan Arlt +2
We theoretically propose and experimentally demonstrate the use of motional sidebands in a trapped ensemble of Rb atoms to engineer tunable long-range XXZ spin models. We be…
Observation of Atom Number Fluctuations in a Bose-Einstein Condensate
M. A. Kristensen, M. B. Christensen, M. Gajdacz +7
Fluctuations are a key property of both classical and quantum systems. While the fluctuations are well understood for many quantum systems at zero temperature, the case of an inter…