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28 papers · 2 filters
Experimental implementation of a four-player quantum game
Christian Schmid, Adrian P. Flitney, Witlef Wieczorek +3
Game theory is central to the understanding of competitive interactions arising in many fields, from the social and physical sciences to economics. Recently, as the definition of i…
Experimental test of nonclassicality criteria
T. Kiesel, W. Vogel, B. Hage +3
We experimentally examine the nonclassical character of a class of non-Gaussian states known as phase-diffused squeezed states. These states may show no squeezing effect at all, an…
Generation of Total Angular Momentum Eigenstates in Remote Qubits
A. Maser, U. Schilling, T. Bastin +3
We propose a scheme enabling the universal coupling of angular momentum of remote noninteracting qubits using linear optical tools only. Our system consists of single-photo…
Quantum error correction beyond qubits
Takao Aoki, Go Takahashi, Tadashi Kajiya +4
Quantum computation and communication rely on the ability to manipulate quantum states robustly and with high fidelity. Thus, some form of error correction is needed to protect fra…
A note on quantum error correction with continuous variables
Peter van Loock
We demonstrate that continuous-variable quantum error correction based on Gaussian ancilla states and Gaussian operations (for encoding, syndrome extraction, and recovery) can be v…
Photon-Photon Entanglement with a Single Trapped Atom
B. Weber, H. P. Specht, T. Mueller +4
An experiment is performed where a single rubidium atom trapped within a high-finesse optical cavity emits two independently triggered entangled photons. The entanglement is mediat…