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22 papers · 2 filters
Nuclear spin squeezing in Helium-3 by continuous quantum nondemolition measurement
Alan Serafin, Matteo Fadel, Philipp Treutlein +1
We propose a technique to control the macroscopic collective nuclear spin of a Helium-3 vapor in the quantum regime using light. The scheme relies on metastability exchange collisi…
Alternative experimental ways to access entropy production
Zheng Tan, Patrice A. Camati, Guillaume Coeuret Cauquil +2
We theoretically derive and experimentally compare several different ways to access entropy production in a quantum process under feedback control. We focus on a bipartite quantum…
Moiré heterostructures as a condensed matter quantum simulator
Dante M. Kennes, Martin Claassen, Lede Xian +7
Twisted van der Waals heterostructures have latterly received prominent attention for their many remarkable experimental properties, and the promise that they hold for realising el…
Many-Body Quantum Zeno Effect and Measurement-Induced Subradiance Transition
Alberto Biella, Marco Schiró
It is well known that by repeatedly measuring a quantum system it is possible to completely freeze its dynamics into a well defined state, a signature of the quantum Zeno effect. H…
Dissipative flow equations
Lorenzo Rosso, Fernando Iemini, Marco Schirò +1
We generalize the theory of flow equations to open quantum systems focusing on Lindblad master equations. We introduce and discuss three different generators of the flow that trans…
Observing spin-squeezed states under spin-exchange collisions for a second
Meng-Zi Huang, Jose Alberto de la Paz, Tommaso Mazzoni +5
Using the platform of a trapped-atom clock on a chip, we observe the time evolution of spin-squeezed hyperfine clock states in ultracold rubidium atoms on previously inaccessible t…