106 citations · 237 across the 12 of their papers we have counts for
13 papers
Microwave-controlled interactions and stripe formation of static-field-shielded polar molecules
Tiziano Arnone Cardinale, Malte Schubert, Stephanie M. Reimann
We study polar molecules where short-range losses are suppressed by a shielding scheme involving a static electric field and an elliptically polarized microwave field. Using pertur…
Dimensional crossover of bound complexes in a two-species Bose-Hubbard lattice: Correlations and dynamics
Deepak Gaur, Koushik Mukherjee, Stephanie M. Reimann
We study the equilibrium and nonequilibrium formation of four-particle complexes in a balanced two-species Bose-Hubbard model with repulsive intraspecies and attractive interspecie…
Soliton-to-droplet crossover in a dipolar Bose gas in one and two dimensions
Malte Schubert, Thomas Bland, Manfred J. Mark +2
We analyze a system of dipolar atoms confined in geometries of quasi-low-dimensionality. Due to the long-range and anisotropic nature of dipolar interactions, the system supports b…
Vorticity-Crystalline Order Coupling in Supersolids: Excitations and Re-entrant Phases
Malte Schubert, Koushik Mukherjee, Philipp Stürmer +1
Rotation is a natural tool in ultracold gases to break time-reversal symmetry, yet its impact on the collective excitations of supersolids remains largely unexplored. We show theor…
Quantum Carpets of Higgs particles in a Supersolid
Koushik Mukherjee, Malte Schubert, Ralf Klemt +3
Supersolids formed from dipolar Bose-Einstein condensates (BECs) exhibit spontaneous density modulation while maintaining global phase coherence. This state of matter supports gapp…
Josephson vortices and persistent current in a double-ring supersolid system
Malte Schubert, Koushik Mukherjee, Tilman Pfau +1
We theoretically investigate the properties of ultra-cold dipolar atoms in radially coupled, concentric annular traps created by a potential barrier. The non-rotating ground-state…
Decoupled sound and amplitude modes in trapped dipolar supersolids
Jens Hertkorn, Philipp Stürmer, Koushik Mukherjee +7
We theoretically investigate elementary excitations of dipolar quantum gases across the superfluid to supersolid phase transition in a toroidal trap. We show how decoupled first so…
Toroidal Dipolar Supersolid with a Rotating Weak Link
Mikael Nilsson Tengstrand, Philipp Stürmer, Johan Ribbing +1
Ring-shaped superfluids with weak links provide a perfect environment for studying persistent currents and dynamic stirring protocols. Here, we investigate the effects of a weak-li…
Breathing mode in two-dimensional binary self-bound Bose gas droplets
Philipp Stürmer, Mikael Nilsson Tengstrand, Rashi Sachdeva +1
In this work, we present the study of the stationary structures and the breathing mode behavior of a two-dimensional self-bound binary Bose droplet. We employ an analytical approac…
Persistent Currents in Toroidal Dipolar Supersolids
M. Nilsson Tengstrand, D. Boholm, R. Sachdeva +2
We investigate the rotational properties of a dipolar Bose-Einstein condensate trapped in a toroidal geometry. Studying the ground states in the rotating frame and at fixed angular…
A two-state model for vortex nucleation in a rotating Bose-Einstein condensate
G. Eriksson, J. Bengtsson, G. M. Kavoulakis +1
It is well-known that a rotating Bose-Einstein condensate forms vortices to carry the angular momentum. For a first vortex to nucleate at the trap center, the rotational frequency…
Rotating binary Bose-Einstein condensates and vortex clusters in quantum droplets
M. Nilsson Tengstrand, P. Stürmer, E. Karabulut +1
Quantum droplets may form out of a gaseous Bose-Einstein condensate, stabilized by quantum fluctuations beyond mean field. We show that multiple singly-quantized vortices may form…
Bosonic Szilard Engine Assisted by Feshbach Resonances
J. Bengtsson, M. Nilsson Tengstrand, S. M. Reimann
It was recently found that the information-to-work conversion in a quantum Szilard engine can be increased by using a working medium of bosons with attractive interactions. In the…