446 citations · 1.6k across the 33 of their papers we have counts for
25 papers · 1 filter
Precision tests of nonlinear and stochastic modifications of quantum mechanics with a 1D quantum gas
Yi Zeng, Angelo Bassi, Grigori E. Astrakharchik +3
We propose a cold-atom platform for precision tests of nonlinear and stochastic modifications to the Schrödinger equation, utilizing strongly correlated ultracold Cs in a u…
Observing the emergence of a velocity hierarchy in matter waves
Xudong Yu, Wenhan Chen, Igor Zhuravlev +8
Classical waves in dispersive media naturally exhibit distinct phase and group velocities. Whether an analogous separation of velocities can emerge in matter waves under strong man…
Interaction-enabled metal-insulator phase transition in a driven quantum gas
Camilo Cantillano, Karthick Ramanathan, Zekai Chen +6
Particle transport and energy flow are central to a wide range of phenomena in the natural sciences. While interactions generically promote ergodicity and diffusion, quantum interf…
The wave nature of a Mott insulator
Xudong Yu, Chengyang Wu, Wenhan Chen +10
Quantum phases of matter are routinely identified by coherence features, with interference patterns being one of the most directly observable quantities. In lattices, the superflui…
Observing dissipationless flow of an impurity in a strongly repulsive quantum fluid
Milena Horvath, Sudipta Dhar, Elisabeth Wybo +6
The frictionless motion of an object through a fluid medium is commonly viewed as a hallmark of superfluidity. According to Landau, kinematic constraints prohibit superfluid behavi…
Realization of fractional Fermi seas
Yi Zeng, Alvise Bastianello, Sudipta Dhar +7
The Pauli exclusion principle is a cornerstone of quantum physics: it governs the structure of matter. Extensions of this principle, such as Haldane's generalized exclusion statist…
Exotic critical states as fractional Fermi seas in the one-dimensional Bose gas
Alvise Bastianello, Yi Zeng, Sudipta Dhar +7
Critical quantum field theories occupy a central position in modern theoretical physics for their inherent universality stemming from long-range correlations. As an example, the To…
Observing Bethe strings in an attractive Bose gas far from equilibrium
Milena Horvath, Alvise Bastianello, Sudipta Dhar +5
Bethe strings are bound states of constituent particles in a variety of interacting many-body one-dimensional (1D) integrable quantum models relevant to magnetism, nanophysics, col…
Spectroscopy and Ground-State Transfer of Ultracold Bosonic KCs Molecules
Krzysztof P. Zamarski, Charly Beulenkamp, Yi Zeng +2
We report the creation of ultracold samples of KCs molecules in their rovibrational ground state. By investigating potentially suitable excited states using one- and…
Formation of ultracold KCs Feshbach molecules
Charly Beulenkamp, Krzysztof P. Zamarski, Robert C. Bird +4
We report the creation of an ultracold gas of bosonic KCs molecules. We first demonstrate a cooling strategy relying on sympathetic cooling of Cs to produce…
Anyonization of bosons in one dimension: an effective swap model
Botao Wang, Amit Vashisht, Yanliang Guo +4
Anyons emerge as elementary excitations in low-dimensional quantum systems and exhibit behavior distinct from bosons or fermions. Previous models of anyons in one dimension (1D) ar…
Origin and emergent features of many-body dynamical localization
Ang Yang, Zekai Chen, Yanliang Guo +3
The question of whether interactions can break dynamical localization in quantum kicked rotor systems has been the subject of a long--standing debate. Here, we introduce an extende…
Anyonization of bosons
Sudipta Dhar, Botao Wang, Milena Horvath +7
Anyons are low-dimensional quasiparticles that obey fractional statistics, hence interpolating between bosons and fermions. In two dimensions, they exist as elementary excitations…
Bose-Einstein condensation of non-ground-state caesium atoms
Milena Horvath, Sudipta Dhar, Arpita Das +5
Bose-Einstein condensates of ultracold atoms serve as low-entropy sources for a multitude of quantum-science applications, ranging from quantum simulation and quantum many-body phy…
Cooling bosons by dimensional reduction
Yanliang Guo, Hepeng Yao, Sudipta Dhar +5
Cold atomic gases provide a remarkable testbed to study the physics of interacting many-body quantum systems. They have started to play a major role as quantum simulators, given th…
Experimental Observation of the 2D-1D Dimensional Crossover in Strongly Interacting Ultracold Bosons
Yanliang Guo, Hepeng Yao, Satwik Ramanjanappa +6
Dimensionality plays an essential role in determining the nature and properties of a physical system. For quantum systems the impact of interactions and fluctuations is enhanced in…
Observation of confinement-induced resonances in a 3D lattice
Deborah Capecchi, Camilo Cantillano, Manfred J. Mark +6
We report on the observation of confinement-induced resonances for strong three-dimensional (3D) confinement in a lattice potential. Starting from a Mott-insulator state with predo…
Long distance optical transport of ultracold atoms: A compact setup using a Moiré lens
Govind Unnikrishnan, Charly Beulenkamp, Dechao Zhang +3
We present a compact and robust setup to optically transport ultracold atoms over long distances. Using a focus-tunable Moiré lens that has recently appeared on the market, we demo…
Dissipation Induced Structural Instability and Chiral Dynamics in a Quantum Gas
Nishant Dogra, Manuele Landini, Katrin Kroeger +3
Dissipative and unitary processes define the evolution of a many-body system. Their interplay gives rise to dynamical phase transitions and can lead to instabilities. We discovered…
Formation of a spin texture in a quantum gas coupled to a cavity
M. Landini, N. Dogra, K. Kroeger +3
We observe cavity mediated spin-dependent interactions in an off-resonantly driven multi-level atomic Bose-Einstein condensate that is strongly coupled to an optical cavity. Applyi…
Metastability and avalanche dynamics in strongly-correlated gases with long-range interactions
Lorenz Hruby, Nishant Dogra, Manuele Landini +2
We experimentally study the stability of a bosonic Mott-insulator against the formation of a density wave induced by long-range interactions, and characterize the intrinsic dynamic…
Observation of Quantum Phase Transitions with Parity-Symmetry Breaking and Hysteresis
A. Trenkwalder, G. Spagnolli, G. Semeghini +8
Symmetry-breaking quantum phase transitions play a key role in several condensed matter, cosmology and nuclear physics theoretical models. Its observation in real systems is often…
Quantum phases from competing short- and long-range interactions in an optical lattice
Renate Landig, Lorenz Hruby, Nishant Dogra +4
Insights into complex phenomena in quantum matter can be gained from simulation experiments with ultracold atoms, especially in cases where theoretical characterization is challeng…
Universality of the three-body Efimov parameter at narrow Feshbach resonances
Sanjukta Roy, Manuele Landini, Andreas Trenkwalder +6
We measure the critical scattering length for the appearance of the first three-body bound state, or Efimov three-body parameter, at seven different Feshbach resonances in ultracol…