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- Institute for Quantum Optics and Quantum Information InnsbruckAT973 papers
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- University of ViennaAT835 papers
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25 papers · 2 filters
Scalable Ion Trap Quantum Computing without Moving Ions
L. Tian, R. Blatt, P. Zoller
A hybrid quantum computing scheme is studied where the hybrid qubit is made of an ion trap qubit serving as the information storage and a solid-state charge qubit serving as the qu…
Schroedinger Cat States of a Nanomechanical Resonator
L. Tian
We present a scheme of generating large-amplitude Schrödinger cat states and entanglement in a coupled system of nanomechanical resonator and single Cooper pair box (SCPB), without…
Full characterization of a three-photon GHZ state using quantum state tomography
Kevin J. Resch, Philip Walther, Anton Zeilinger
We have performed the first experimental tomographic reconstruction of a three-photon polarization state. Quantum state tomography is a powerful tool for fully describing the densi…
Coherent control of trapped ions using off-resonant lasers
J. J. Garcia-Ripoll, P. Zoller, J. I. Cirac
In this paper we develop a unified framework to study the coherent control of trapped ions subject to state-dependent forces. Taking different limits in our theory, we can reproduc…
Crucial Role of Quantum Entanglement in Bulk Properties of Solids
Caslav Brukner, Vlatko Vedral, Anton Zeilinger
We demonstrate that the magnetic susceptibility of strongly alternating antiferromagnetic spin-1/2 chains is an entanglement witness. Specifically, magnetic susceptibility of coppe…
Experimental Realization of a Photonic Bell-State Analyzer
Philip Walther, Anton Zeilinger
Efficient teleportation is a crucial step for quantum computation and quantum networking. In the case of qubits, four different entangled Bell states have to be distinguished. We h…