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124 papers · 1 filter
Pseudogap phase of cuprate superconductors confined by Fermi surface topology
N. Doiron-Leyraud, O. Cyr-Choinière, S. Badoux +15
The properties of cuprate high-temperature superconductors are largely shaped by competing phases whose nature is often a mystery. Chiefly among them is the pseudogap phase, which…
Collective modes of an imbalanced unitary Fermi gas
Johannes Hofmann, Frédéric Chevy, Olga Goulko +1
We study theoretically the collective mode spectrum of a strongly imbalanced two-component unitary Fermi gas in a cigar-shaped trap, where the minority species forms a gas of polar…
The MICROSCOPE mission: first results of a space test of the Equivalence Principle
Pierre Touboul, Gilles Métris, Manuel Rodrigues +40
According to the Weak Equivalence Principle, all bodies should fall at the same rate in a gravitational field. The MICROSCOPE satellite, launched in April 2016, aims to test its va…
Determinant Monte Carlo algorithms for dynamical quantities in fermionic systems
Alice Moutenet, Wei Wu, Michel Ferrero
We introduce and compare three different Monte Carlo determinantal algorithms that allow one to compute dynamical quantities, such as the self-energy, of fermionic systems in their…
Ratchet Effect in the Quantum Kicked Rotor and its Destruction by Dynamical Localization
Clément Hainaut, Adam Rançon, Jean-François Clément +4
We study experimentally a quantum kicked rotor with broken parity symmetry, supporting a ratchet effect due to the presence of a classical accelerator mode. We show that the short-…
Conductivity spectrum of ultracold atoms in an optical lattice
Rhys Anderson, Fudong Wang, Peihang Xu +4
We measure the conductivity of neutral fermions in a cubic optical lattice. Using in-situ fluorescence microscopy, we observe the alternating current resultant from a single-freque…