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5 papers · 2 filters
Quantum computing with spatially delocalized qubits
J. Mompart, K. Eckert, W. Ertmer +2
We analyze the operation of quantum gates for neutral atoms with qubits that are delocalized in space, i.e., the computational basis states are defined by the presence of a neutral…
Minimal measurements of the gate fidelity of a qudit map
E. Bagan, M. Baig, R. Munoz-Tapia
We obtain a simple formula for the average gate fidelity of a linear map acting on qudits. It is given in terms of minimal sets of pure state preparations alone, which may be inter…
Quantum computing in optical microtraps based on the motional states of neutral atoms
K. Eckert, J. Mompart, X. X. Yi +4
We investigate quantum computation with neutral atoms in optical microtraps where the qubit is implemented in the motional states of the atoms, i.e., in the two lowest vibrational…
A test of Local Realism with entangled kaon pairs and without inequalities
A. Bramon, G. Garbarino
We propose the use of entangled pairs of neutral kaons, considered as a promising tool to close the well known loopholes affecting generic Bell's inequality tests, in a specific Ha…
Optimal scheme for estimating a pure qubit state via local measurements
E. Bagan, M. Baig, R. Munoz-Tapia
We present the optimal scheme for estimating a pure qubit state by means of local measurements on N identical copies. We give explicit examples for low N. For large N, we show that…