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- Centre National de la Recherche ScientifiqueFR423 papers
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4 papers · 2 filters
Fully covariant radiation force on a polarizable particle
Gregor Pieplow, Carsten Henkel
The electromagnetic force on a polarizable particle is calculated in a covariant framework. Local equilibrium temperatures for the electromagnetic field and the particle's dipole m…
Positive Wigner functions render classical simulation of quantum computation efficient
A. Mari, J. Eisert
We show that quantum circuits where the initial state and all the following quantum operations can be represented by positive Wigner functions can be classically efficiently simula…
Wick's theorem for matrix product states
R. Hübener, A. Mari, J. Eisert
Matrix-product states and their continuous analogues are variational classes of states that capture quantum many-body systems or quantum fields with low entanglement; they are at t…
Efficient and feasible state tomography of quantum many-body systems
M. Ohliger, V. Nesme, J. Eisert
We present a novel method to perform quantum state tomography for many-particle systems which are particularly suitable for estimating states in lattice systems such as of ultra-co…