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6 papers · 2 filters
Experimental Quantum Simulation of Entanglement in Many-body Systems
Jingfu Zhang, Tzu-Chieh Wei, Raymond Laflamme
We employ a nuclear magnetic resonance (NMR) quantum information processor to simulate the ground state of an XXZ spin chain and measure its NMR analog of entanglement, or pseudo-e…
Nanoscale magnetometry using a single spin system in diamond
R. S. Said, D. W. Berry, J. Twamley
We propose a protocol to estimate magnetic fields using a single nitrogen-vacancy (N-V) center in diamond, where the estimate precision scales inversely with time, ~1/T$, rather th…
Strong quantitative benchmarking of quantum optical devices
Nathan Killoran, Norbert Lütkenhaus
Quantum communication devices, such as quantum repeaters, quantum memories, or quantum channels, are unavoidably exposed to imperfections. However, the presence of imperfections ca…
All non-classical correlations can be activated into distillable entanglement
Marco Piani, Sevag Gharibian, Gerardo Adesso +3
We devise a protocol in which general non-classical multipartite correlations produce a physically relevant effect, leading to the creation of bipartite entanglement. In particular…
Reversible Circuit Optimization via Leaving the Boolean Domain
Dmitri Maslov, Mehdi Saeedi
For years, the quantum/reversible circuit community has been convinced that: a) the addition of auxiliary qubits is instrumental in constructing a smaller quantum circuit; and, b)…
Fast optical source for quantum key distribution based on semiconductor optical amplifiers
M. Jofre, A. Gardelein, G. Anzolin +16
A novel integrated optical source capable of emitting faint pulses with different polarization states and with different intensity levels at 100 MHz has been developed. The source…