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4 papers · 2 filters
Novel Bell's inequalities for entangled K0 anti-K0 pairs
A. Bramon, G. Garbarino
We derive new Bell's inequalities for entangled K0 anti-K0 pairs. This requires 1) mutually exclusive setups allowing either K0 vs anti-K0 or KS vs KL detection and 2) the use of k…
Coherent population trapping in two-electron three-level systems with aligned spins
J. Mompart, R. Corbalan, L. Roso
The possibility of coherent population trapping in two electron states with aligned spins (ortho-system) is evidenced. From the analysis of a three-level atomic system containing t…
Communicating a direction using spin states
E. Bagan, M. Baig, R. Munoz-Tapia
The communication of directions using quantum states is a useful laboratory test for some basic facts of quantum information. For a system of spin-1/2 particles there are different…
Aligning Reference Frames Using Quantum States
E. Bagan, M. Baig, R. Munoz-Tapia
We analyze the problem of sending, in a single transmission, the information required to specify an orthogonal trihedron or reference frame through a quantum channel made out of N…