Joerg Schmiedmayer | Tu Wien (original) (raw)
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Papers by Joerg Schmiedmayer
arXiv (Cornell University), Sep 2, 2013
Physical Review Letters, 2020
Stochastic Optimization - Seeing the Optimal for the Uncertain, 2011
Physical Review Letters, 2008
New Journal of Physics, 2010
Journal of Physics: Conference Series, 2005
Scientific reports, Jan 24, 2016
In this article we present a simple repeater scheme based on the negatively-charged nitrogen vaca... more In this article we present a simple repeater scheme based on the negatively-charged nitrogen vacancy centre in diamond. Each repeater node is built from modules comprising an optical cavity containing a single NV(-), with one nuclear spin from (15)N as quantum memory. The module uses only deterministic processes and interactions to achieve high fidelity operations (>99%), and modules are connected by optical fiber. In the repeater node architecture, the processes between modules by photons can be in principle deterministic, however current limitations on optical components lead the processes to be probabilistic but heralded. Our resource-modest repeater architecture contains two modules at each node, and the repeater nodes are then connected by entangled photon pairs. We discuss the performance of such a quantum repeater network with modest resources and then incorporate more resource-intense strategies step by step. Our architecture should allow large-scale quantum information n...
Phys Rev Lett, 2007
We demonstrate a novel way to efficiently and very robust create an entanglement between an atomi... more We demonstrate a novel way to efficiently and very robust create an entanglement between an atomic and a photonic qubit. A single laser beam is used to excite one atomic ensemble and two different spatial modes of scattered Raman fields are collected to generate the atom-photon entanglement. With the help of build-in quantum memory, the entanglement still exists after 20.5 mu\mumus storage time which is further proved by the violation of CHSH type Bell's inequality. Our entanglement procedure is the building block for a novel robust quantum repeater architecture [Zhao et al, Phys. Rev. Lett. 98, 240502 (2007)]. Our approach can be easily extended to generate high dimensional atom-photon entanglements.
arXiv (Cornell University), Sep 2, 2013
Physical Review Letters, 2020
Stochastic Optimization - Seeing the Optimal for the Uncertain, 2011
Physical Review Letters, 2008
New Journal of Physics, 2010
Journal of Physics: Conference Series, 2005
Scientific reports, Jan 24, 2016
In this article we present a simple repeater scheme based on the negatively-charged nitrogen vaca... more In this article we present a simple repeater scheme based on the negatively-charged nitrogen vacancy centre in diamond. Each repeater node is built from modules comprising an optical cavity containing a single NV(-), with one nuclear spin from (15)N as quantum memory. The module uses only deterministic processes and interactions to achieve high fidelity operations (>99%), and modules are connected by optical fiber. In the repeater node architecture, the processes between modules by photons can be in principle deterministic, however current limitations on optical components lead the processes to be probabilistic but heralded. Our resource-modest repeater architecture contains two modules at each node, and the repeater nodes are then connected by entangled photon pairs. We discuss the performance of such a quantum repeater network with modest resources and then incorporate more resource-intense strategies step by step. Our architecture should allow large-scale quantum information n...
Phys Rev Lett, 2007
We demonstrate a novel way to efficiently and very robust create an entanglement between an atomi... more We demonstrate a novel way to efficiently and very robust create an entanglement between an atomic and a photonic qubit. A single laser beam is used to excite one atomic ensemble and two different spatial modes of scattered Raman fields are collected to generate the atom-photon entanglement. With the help of build-in quantum memory, the entanglement still exists after 20.5 mu\mumus storage time which is further proved by the violation of CHSH type Bell's inequality. Our entanglement procedure is the building block for a novel robust quantum repeater architecture [Zhao et al, Phys. Rev. Lett. 98, 240502 (2007)]. Our approach can be easily extended to generate high dimensional atom-photon entanglements.