Brian Julsgaard
Aarhus University
60 Papers
195 Citations
Brian Julsgaard is an academic researcher from Aarhus University. The author has contributed to research in topics: Quantum entanglement & Quantum state. The author has an hindex of 21, co-authored 41 publications. Previous affiliations of Brian Julsgaard include Niels Bohr Institute & Technical University of Denmark.
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Papers
Experimental long-lived entanglement of two macroscopic objects
TL;DR: The robust and long-lived entanglement of material objects demonstrated here to be useful in quantum information processing, including teleportation of quantum states of matter and quantum memory is expected.
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Quantum teleportation between light and matter
Jacob F. Sherson,H. Krauter,Rasmus K. Olsson,Brian Julsgaard,Klemens Hammerer,Ignacio Cirac,Eugene S. Polzik +6 more
TL;DR: The teleportation of a quantum state between two single material particles (trapped ions) has now also been achieved and is demonstrated between objects of a different nature—light and matter, which respectively represent ‘flying’ and ‘stationary’ media.
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Experimental long-lived entanglement of two macroscopic objects
TL;DR: In this paper, the authors demonstrate the entanglement of two gas samples of cesium atoms with a pulse of light, which performs a non-local Bell measurement on collective spins of the samples.
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Reaching the quantum limit of sensitivity in electron spin resonance
Audrey Bienfait,Jarryd J. Pla,Yuimaru Kubo,Michael Stern,Michael Stern,Xin Zhou,Cheuk Chi Lo,C. D. Weis,Thomas Schenkel,Mike L. W. Thewalt,Denis Vion,Daniel Esteve,Brian Julsgaard,Klaus Mølmer,John J. L. Morton,Patrice Bertet +15 more
TL;DR: This work improves the state-of-the-art sensitivity of inductive ESR detection by nearly four orders of magnitude, and demonstrates the detection of 1,700 bismuth donor spins in silicon within a single Hahn echo with unit signal-to-noise ratio.
Quantum memory for microwave photons in an inhomogeneously broadened spin ensemble.
TL;DR: It is shown that a memory based on nitrogen vacancy center spins in diamond can store a qubit encoded on the |0> and |1> Fock states of the field with 80% fidelity and outperform classical memory strategies for storage times ≤69 μs.
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