Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Østfeldt, P."'
Autor:
Bærentsen, Christian, Fedorov, Sergey A., Østfeldt, Christoffer, Balabas, Mikhail V., Zeuthen, Emil, Polzik, Eugene S.
Publikováno v:
Nat Commun 15, 4146 (2024)
Continuous measurements of the position of an oscillator become projective on position eigenstates when the measurements are made faster than the coherent evolution. We evidence an effect of this transition on a spin oscillator within an ensemble of
Externí odkaz:
http://arxiv.org/abs/2302.13633
We analyse the entanglement properties of deterministic path-entangled photonic states generated by coupling the emission of a quantum-dot biexciton cascade to a chiral nanophotonic waveguide, as implemented by {\O}stfeldt et al. [PRX Quantum 3, 0203
Externí odkaz:
http://arxiv.org/abs/2301.04444
Autor:
Christian Bærentsen, Sergey A. Fedorov, Christoffer Østfeldt, Mikhail V. Balabas, Emil Zeuthen, Eugene S. Polzik
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-7 (2024)
Abstract Sufficiently fast continuous measurements of the position of an oscillator approach measurements projective on position eigenstates. We evidence the transition into the projective regime for a spin oscillator within an ensemble of 2 × 1010
Externí odkaz:
https://doaj.org/article/9cea01e441034a47b3b3fecb6eacbf6c
Autor:
Østfeldt, Freja T., González-Ruiz, Eva M., Hauff, Nils, Wang, Ying, Wieck, Andreas D., Ludwig, Arne, Schott, Rüdiger, Midolo, Leonardo, Sørensen, Anders S., Uppu, Ravitej, Lodahl, Peter
Entanglement is the fuel of advanced quantum technology. It is for instance consumed in measurement-based quantum computing and allows loss-tolerant encoding of quantum information. In photonics, entanglement has traditionally been generated probabil
Externí odkaz:
http://arxiv.org/abs/2109.03519
Autor:
Thomas, Rodrigo A., Østfeldt, Christoffer, Bærentsen, Christian, Parniak, Michał, Polzik, Eugene S.
Calibrating the strength of the light-matter interaction is an important experimental task in quantum information and quantum state engineering protocols. The strength of the off-resonant light-matter interaction in multi-atom spin oscillators can be
Externí odkaz:
http://arxiv.org/abs/2103.11729
Autor:
Markussen, Signe B., Appel, Jürgen, Østfeldt, Christoffer, Béguin, Jean-Baptiste S., Polzik, Eugene S., Müller, Jörg H.
Publikováno v:
Applied Physics B 126 (2020) 73
Atoms trapped in the evanescent field around a nanofiber experience strong coupling to the light guided in the fiber mode. However, due to the intrinsically strong positional dependence of the coupling, thermal motion of the ensemble limits the use o
Externí odkaz:
http://arxiv.org/abs/2006.12167
Autor:
Thomas, Rodrigo A., Parniak, Michał, Østfeldt, Christoffer, Møller, Chistoffer B., Bærentsen, Christian, Tsaturyan, Yeghishe, Schliesser, Albert, Appel, Jürgen, Zeuthen, Emil, Polzik, Eugene S.
Entanglement is a vital property of multipartite quantum systems, characterised by the inseparability of quantum states of objects regardless of their spatial separation. Generation of entanglement between increasingly macroscopic and disparate syste
Externí odkaz:
http://arxiv.org/abs/2003.11310
Autor:
Østfeldt, Christoffer, Béguin, Jean-Baptiste, Pedersen, Freja T., Polzik, Eugene S., Müller, Jörg Helge, Appel, Jürgen
The evanescent field surrounding nano-scale optical waveguides offers an efficient interface between light and mesoscopic ensembles of neutral atoms. However, the thermal motion of trapped atoms, combined with the strong radial gradients of the guide
Externí odkaz:
http://arxiv.org/abs/1708.03488
Akademický článek
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Autor:
Freja T. Østfeldt, Eva M. González-Ruiz, Nils Hauff, Ying Wang, Andreas D. Wieck, Arne Ludwig, Rüdiger Schott, Leonardo Midolo, Anders S. Sørensen, Ravitej Uppu, Peter Lodahl
Publikováno v:
PRX Quantum, Vol 3, Iss 2, p 020363 (2022)
Entanglement is the fuel of advanced quantum technology, enabling, e.g., measurement-based quantum computing and loss-tolerant encoding of quantum information. In photonics, entanglement has traditionally been generated probabilistically, requiring m
Externí odkaz:
https://doaj.org/article/bed3db9e114945efaf11ba8c4ae7098e