963 citations · 7.7k across the 137 of their papers we have counts for
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Nonequilibrium Phase Transition of Interacting Bosons in an Intra-Cavity Optical Lattice
M. Reza Bakhtiari, Andreas Hemmerich, Helmut Ritsch +1
We investigate the nonlinear light-matter interaction of a Bose-Einstein condensate trapped in an external periodic potential inside an optical cavity which is weakly coupled to va…
Self-ordering and collective dynamics of transversely illuminated point-scatterers in a 1D trap
Daniela Holzmann, Matthias Sonnleitner, Helmut Ritsch
We study point-like polarizable particles confined in a 1D very elongated trap within the evanescent field of an optical nano-fiber or nano-structure. When illuminated transversely…
Optimized multifrequency light collection by adaptive self-ordering of scatterers in optical resonators
Valentin Torggler, Helmut Ritsch
Mobile light scatterers in a high-Q optical cavity transversely illuminated by laser light close to a cavity resonance form ordered patterns, which maximize light scattering into t…
Protected subspace Ramsey spectroscopy
Laurin Ostermann, David Plankensteiner, Helmut Ritsch +1
We study a modified Ramsey spectroscopy technique employing slowly decaying states for quantum metrology applications using dense ensembles. While closely positioned atoms exhibit…
Self-ordering dynamics of ultracold atoms in multicolored cavity fields
Sebastian Krämer, Helmut Ritsch
We study light induced spatial crystallization of ultracold quantum particles confined along the axis of a high- linear cavity via a transverse multicolor pump using numerical s…
A superradiant clock laser on a magicwavelength optical lattice
Thomas Maier, Sebastian Kraemer, Laurin Ostermann +1
An ideal superradiant laser on an optical clock transition of noninteracting cold atoms is predicted to exhibit an extreme frequency stability and accuracy far below mHz-linewidth.…