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- Université Toulouse III - Paul SabatierFR730 papers
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37 papers · 1 filter
Measurement of the Aharonov-Casher geometric phase with a separated-arm atom interferometer
Jonathan Gillot, Steven Lepoutre, Alexandre Gauguet +2
In this letter, we report a measurement of the Aharonov-Casher (AC) geometric phase with our lithium atom interferometer. The AC phase appears when a particle carrying a magnetic d…
On the origin of the exponential decay of the Loschmidt echo in integrable systems
Remy Dubertrand, Arseni Goussev
We address the time decay of the Loschmidt echo, measuring sensitivity of quantum dynamics to small Hamiltonian perturbations, in one-dimensional integrable systems. Using semiclas…
On the convergence of output sets of quantum channels
Benoit Collins, Motohisa Fukuda, Ion Nechita
We study the asymptotic behavior of the output states of sequences of quantum channels. Under a natural assumption, we show that the output set converges to a compact convex set, c…
Vanishing spin gap in a competing spin-liquid phase in the kagome Heisenberg antiferromagnet
Yasir Iqbal, Didier Poilblanc, Federico Becca
We provide strong numerical evidence, using improved variational wave functions, for a ground state with vanishing spin gap in the spin- quantum Heisenberg model on the kagome…
Equivalence of gradient flows and entropy solutions for singular nonlocal interaction equations in 1D
Giovanni A. Bonaschi, José A. Carrillo, Marco Di Francesco +1
We prove the equivalence between the notion of Wasserstein gradient flow for a one-dimensional nonlocal transport PDE with attractive/repulsive Newtonian potential on one side, and…
Laser-induced electron emission from a tungsten nanotip: identifying above threshold photoemission using energy-resolved laser power dependencies
M. R. Bionta, B. Chalopin, J. P. Champeaux +4
We present an experiment studying the interaction of a strongly focused 25 fs laser pulse with a tungsten nanotip, investigating the different regimes of laser-induced electron emi…