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9 papers · 2 filters
Sufficient bound on the mode mismatch of single photons for scalability of the boson sampling computer
Valery Shchesnovich
The boson sampler proposed by Aaronson and Arkhipov is a non-universal quantum computer, which can serve as evidence against the extended Church-Turing thesis. It samples the proba…
Master equation for dissipative interacting qubits in a common environment
J. P. Santos, F. L. Semião
In this paper, we derive a microscopic master equation for a pair of XY-coupled two-level systems interacting with the same memoryless reservoir. In particular, we apply this maste…
Tight Bounds for the Entanglement of Formation of Gaussian States
Fernando Nicacio, Marcos Cesar de Oliveira
We establish tight upper and lower bounds for the Entanglement of Formation of an arbitrary two-mode Gaussian state employing necessary properties of Gaussian channels. Both bounds…
Nonadiabatic quantum state engineering driven by fast quench dynamics
Marcela Herrera, Marcelo S. Sarandy, Eduardo I. Duzzioni +1
There are a number of tasks in quantum information science that exploit non-transitional adiabatic dynamics. Such a dynamics is bounded by the adiabatic theorem, which naturally im…
Experimental Demonstration of non-Markovian Dynamics via a Temporal Bell-like Inequality
A. M. Souza, J. Li, D. O. Soares-Pinto +5
We assess non-Markovianity of a quantum open-system dynamics through the violation of temporal bell-like inequalities in a controllable Nuclear Magnetic Resonance system. We invest…
Experimental reconstruction of work distribution and verification of fluctuation relations at the full quantum level
Tiago Batalhão, Alexandre M. Souza, Laura Mazzola +6
Research on the out-of-equilibrium dynamics of quantum systems has so far produced important statements on the thermodynamics of small systems undergoing quantum mechanical evoluti…