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19942026
most citedThe Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package

5k citations

Showing 2004 · quant-phShow all

10 papers · 2 filters

quant-ph2004★ 14 cited

Qubit state guidance without feedback

Mauro Paternostro, M. S. Kim

We study a protocol for two-qubit state guidance that does not rely on feedback mechanisms. In our scheme, entanglement can be concentrated by arranging the interactions of the qub…

quant-ph2004★ 152 cited

Nonclassicality of a photon-subtracted Gaussian field

M. S. Kim, E. Park, P. L. Knight +1

Recently, a non-Gaussian field, which may be a useful basis for entanglement distillation and efficient quantum teleportation, has been experimentally produced by subtracting a pho…

quant-ph2004★ 34 cited

Greenberger-Horne-Zeilinger Nonlocality in Arbitrary Even Dimensions

Jinhyoung Lee, Seung-Woo Lee, M. S. Kim

We generalize Greenberger-Horne-Zeilinger (GHZ) nonlocality to every even-dimensional and odd-partite system. For the purpose we employ concurrent observables that are incompatible…

quant-ph2004★ 65 cited

Quantum state transfer in imperfect artificial spin networks

M. Paternostro, G. M. Palma, M. S. Kim +1

High-fidelity quantum computation and quantum state transfer are possible in short spin chains. We exploit a system based on a dispersive qubit-boson interaction to mimic XY coupli…

quant-ph2004★ 41 cited

Vibrational coherent quantum computation

Mauro Paternostro, M. S. Kim, P. L. Knight

A long-lived coherent state and non-linear interaction have been experimentally demonstrated for the vibrational mode of a trapped ion. We propose an implementation of quantum comp…

quant-ph2004★ 83 cited

Generation of macroscopic superposition states with small nonlinearity

H. Jeong, M. S. Kim, T. C. Ralph +1

We suggest a scheme to generate a macroscopic superposition state (Schrodinger cat state) of a free-propagating optical field using a beam splitter, homodyne measurement and a very…

quant-ph2004★ 125 cited

Complete conditions for entanglement transfer

M. Paternostro, W. Son, M. S. Kim

We investigate the conditions to entangle two qubits interacting with local environments driven by a continuous-variable correlated field. We find the conditions to transfer the en…

quant-ph2004★ 75 cited

Dynamical entanglement-transfer for quantum information networks

M. Paternostro, W. Son, M. S. Kim +2

A key element in the architecture of a quantum information processing network is a reliable physical interface between fields and qubits. We study a process of entanglement transfe…

quant-ph2004★ 32 cited

Completely-Positive Non-Markovian Decoherence

Jinhyoung Lee, Inbo Kim, Helen McAneney +2

We propose an effective Hamiltonian approach to investigate decoherence of a quantum system in a non-Markovian reservoir, naturally imposing the complete positivity on the reduced…

quant-ph2004★ 208 cited

Conditional Production of Superpositions of Coherent States with Inefficient Photon Detection

A. P. Lund, H. Jeong, T. C. Ralph +1

It is shown that a linear superposition of two macroscopically distinguishable optical coherent states can be generated using a single photon source and simple all-optical operatio…