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Self-induced Josephson oscillations and self-trapping in a supersolid dipolar quantum gas
Beatrice Donelli, Nicolò Antolini, Giulio Biagioni +8
The Josephson effect characterizes superfluids and superconductors separated by a weak link, the so-called Josephson junction. A recent experiment has shown that Josephson oscillat…
Tomography of a single-atom-resolved detector in the presence of shot-to-shot number fluctuations
Maxime Allemand, Raphael Jannin, Géraud Dupuy +4
Tomography of single-particle-resolved detectors is of primary importance for characterizing particle correlations with applications in quantum metrology, quantum simulation and qu…
Stabilizing persistent currents in an atomtronic Josephson junction necklace
Luca Pezzè, Klejdja Xhani, Cyprien Daix +7
Arrays of Josephson junctions are at the forefront of research on quantum circuitry for quantum computing, simulation and metrology. They provide a testing bed for exploring a vari…
Sub-unity superfluid fraction of a supersolid from self-induced Josephson effect
Giulio Biagioni, Nicolò Antolini, Beatrice Donelli +8
Recently, a new category of superfluids and superconductors has been discovered in various systems. These could be linked to the idea of a supersolid phase, featuring a macroscopic…
Loschmidt Echo for quantum metrology
Tommaso Macrì, Luca Pezzè, Augusto Smerzi
We propose a versatile Loschmidt echo protocol to detect and quantify multiparticle entanglement. It allows us to extract the quantum Fisher information for arbitrary pure states,…
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…