132 citations · 684 across the 13 of their papers we have counts for
12 papers · 1 filter
Cavity-controlled ultracold chemistry
Tobias Kampschulte, Johannes Hecker Denschlag
Ultracold ground-state molecules can be formed from ultracold atoms via photoassociation followed by a spontaneous emission process. Typically, the molecular products are distribut…
Light-Mediated Collective Atomic Motion in an Optical Lattice Coupled to a Membrane
Aline Vochezer, Tobias Kampschulte, Klemens Hammerer +1
We observe effects of collective atomic motion in a one-dimensional optical lattice coupled to an optomechanical system. In this hybrid atom-optomechanical system, the lattice ligh…
Long Distance Coupling of a Quantum Mechanical Oscillator to the Internal States of an Atomic Ensemble
B. Vogell, T. Kampschulte, M. T. Rakher +4
We propose and investigate a hybrid optomechanical system consisting of a micro-mechanical oscillator coupled to the internal states of a distant ensemble of atoms. The interaction…
Cavity-Modified Collective Rayleigh Scattering of Two Atoms
René Reimann, Wolfgang Alt, Tobias Kampschulte +5
We report on the observation of cooperative radiation of exactly two neutral atoms strongly coupled to the single mode field of an optical cavity, which is close to the lossless-ca…
Sympathetic cooling of a membrane oscillator in a hybrid mechanical-atomic system
Andreas Jöckel, Aline Faber, Tobias Kampschulte +3
Sympathetic cooling with ultracold atoms and atomic ions enables ultralow temperatures in systems where direct laser or evaporative cooling is not possible. It has so far been limi…
A Hidden Markov Model of atomic quantum jump dynamics in an optically probed cavity
S. Gammelmark, W. Alt, T. Kampschulte +2
We analyze the quantum jumps of an atom interacting with a cavity field. The strong atom- field interaction makes the cavity transmission depend on the time dependent atomic state,…
EIT-control of single-atom motion in an optical cavity
Tobias Kampschulte, Wolfgang Alt, Sebastian Manz +6
We demonstrate cooling of the motion of a single atom confined by a dipole trap inside a high-finesse optical resonator. Cooling of the vibrational motion results from EIT-like int…
Bayesian feedback control of a two-atom spin-state in an atom-cavity system
Stefan Brakhane, Wolfgang Alt, Tobias Kampschulte +5
We experimentally demonstrate real-time feedback control of the joint spin-state of two neutral Caesium atoms inside a high finesse optical cavity. The quantum states are discrimin…
Optical control of the refractive index of a single atom
Tobias Kampschulte, Wolfgang Alt, Stefan Brakhane +4
We experimentally demonstrate the elementary case of electromagnetically induced transparency (EIT) with a single atom inside an optical cavity probed by a weak field. We observe t…
Analyzing quantum jumps of one and two atoms strongly coupled to an optical cavity
Sebastian Reick, Klaus Mølmer, Wolfgang Alt +7
We induce quantum jumps between the hyperfine ground states of one and two Cesium atoms, strongly coupled to the mode of a high-finesse optical resonator, and analyze the resulting…
Quantum jumps and spin dynamics of interacting atoms in a strongly coupled atom-cavity system
M. Khudaverdyan, W. Alt, T. Kampschulte +4
We experimentally investigate the spin dynamics of one and two neutral atoms strongly coupled to a high finesse optical cavity. We observe quantum jumps between hyperfine ground st…
Controlled insertion and retrieval of atoms coupled to a high-finesse optical resonator
Mkrtych Khudaverdyan, Wolfgang Alt, Igor Dotsenko +7
We experimentally investigate the interaction between one and two atoms and the field of a high-finesse optical resonator. Laser-cooled caesium atoms are transported into the cavit…