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Negativity for two blocks in the one dimensional Spin 1 AKLT model
Raul A. Santos, V. Korepin, Sougato Bose
In this paper we compute the entanglement, as quantified by negativity, between two blocks of length and , separated by sites in the one dimensional spin-1 AKLT mode…
Reconstructing the quantum state of oscillator networks with a single qubit
Tommaso Tufarelli, Alessandro Ferraro, M. S. Kim +1
We introduce a scheme to reconstruct arbitrary states of networks composed of quantum oscillators--e.g., the motional state of trapped ions or the radiation state of coupled caviti…
Quantum Gates Between Flying Qubits via Spin-Independent Scattering
Sougato Bose, Vladimir Korepin
We show how the spin independent scattering between two identical flying qubits can be used to implement an entangling quantum gate between them. We consider one dimensional models…
Oscillator state reconstruction via tunable qubit coupling in Markovian environments
Tommaso Tufarelli, M. S. Kim, Sougato Bose
We show that a parametrically coupled qubit can be used to fully reconstruct the quantum state of a harmonic oscillator, even when both systems are subject to decoherence. By contr…
Entanglement in bipartite pure states of an interacting boson gas obtained by local projective measurements
Francis N. C. Paraan, Javier Molina-Vilaplana, Vladimir E. Korepin +1
We quantify the extractable entanglement of excited states of a Lieb-Liniger gas that are obtained from coarse-grained measurements on the ground state in which the boson number in…
Quantum Gates Between Two Spins in a Triple Dot System with an Empty Dot
Jose Garcia Coello, Sougato Bose
We propose a scheme for implementing quantum gates and entanglement between spin qubits in the outer dots of a triple-dot system with an empty central dot. The voltage applied to t…