Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Hans Peter Büchler"'
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013278 (2024)
The role of quantum fluctuations in modifying the critical behavior of nonequilibrium phase transitions is a fundamental but unsolved question. In this study, we examine the absorbing state phase transition of a 1D chain of qubits undergoing a contac
Externí odkaz:
https://doaj.org/article/d05b683e6f9e4d24ae33427e23507552
Publikováno v:
Physical Review Research, Vol 5, Iss 3, p 033092 (2023)
In one dimension, quantum fluctuations prevent the appearance of long-range order in a supersolid, and only quasi-long-range order can survive. We derive this quantum critical behavior and study its influence on the superfluid response and properties
Externí odkaz:
https://doaj.org/article/7ce1f4b3a052429e82d777bc05af0c65
Autor:
Nina Stiesdal, Hannes Busche, Kevin Kleinbeck, Jan Kumlin, Mikkel G. Hansen, Hans Peter Büchler, Sebastian Hofferberth
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Interaction of photons with Rydberg atoms can be used to modify quantum states of light. Here the authors demonstrate a controlled nonlinear quantum behavior of multi-photon subtraction in a cascaded system based on Rydberg superatoms.
Externí odkaz:
https://doaj.org/article/e1276ad03c81444889c9b44287c0c582
Autor:
Marcin Kalinowski, Yidan Wang, Przemyslaw Bienias, Michael J. Gullans, D. P. Ornelas-Huerta, Alexander N. Craddock, Steven L. Rolston, J. V. Porto, Hans Peter Büchler, Alexey V. Gorshkov
Publikováno v:
Physical Review Research, Vol 4, Iss 2, p L022059 (2022)
Rydberg polaritons provide an example of a rare type of system where three-body interactions can be as strong as or even stronger than two-body interactions. The three-body interactions can be either dispersive or dissipative, with both types possibl
Externí odkaz:
https://doaj.org/article/2eb77b685d7e4b4db4404163c34a50ab
Autor:
Alice Pagano, Sebastian Weber, Daniel Jaschke, Tilman Pfau, Florian Meinert, Simone Montangero, Hans Peter Büchler
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p 033019 (2022)
We study the implementation of a high fidelity controlled-phase gate in a Rydberg quantum computer. The protocol is based on a symmetric gate with respect to the two qubits as experimentally realized by Levine et al. [Phys. Rev. Lett. 123, 170503 (20
Externí odkaz:
https://doaj.org/article/03f5f29c068c42fc8549d5c5ff8d5c03
Autor:
Simon Ohler, Maximilian Kiefer-Emmanouilidis, Antoine Browaeys, Hans Peter Büchler, Michael Fleischhauer
Publikováno v:
New Journal of Physics, Vol 24, Iss 2, p 023017 (2022)
As shown in recent experiments (Lienhard et al 2020 Phys. Rev. X 10 021031), spin–orbit coupling in systems of Rydberg atoms can give rise to density-dependent Peierls phases in second-order hoppings of Rydberg spin excitations and nearest-neighbor
Externí odkaz:
https://doaj.org/article/37a044777e2f421f9e70195cbdc01bdd
Autor:
Nina Stiesdal, Hannes Busche, Jan Kumlin, Kevin Kleinbeck, Hans Peter Büchler, Sebastian Hofferberth
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043339 (2020)
We experimentally investigate the collective decay of a single Rydberg superatom, formed by an ensemble of thousands of individual atoms supporting only a single excitation due to the Rydberg blockade. Instead of observing a constant decay rate deter
Externí odkaz:
https://doaj.org/article/d86fde98f70d49349979d251b95f039a
Autor:
Vincent Lienhard, Pascal Scholl, Sebastian Weber, Daniel Barredo, Sylvain de Léséleuc, Rukmani Bai, Nicolai Lang, Michael Fleischhauer, Hans Peter Büchler, Thierry Lahaye, Antoine Browaeys
Publikováno v:
Physical Review X, Vol 10, Iss 2, p 021031 (2020)
We experimentally realize a Peierls phase in the hopping amplitude of excitations carried by Rydberg atoms, and observe the resulting characteristic chiral motion in a minimal setup of three sites. Our demonstration relies on the intrinsic spin-orbit
Externí odkaz:
https://doaj.org/article/336f4b83141949e8bbd103a810d7ba24
Autor:
Asaf Paris-Mandoki, Christoph Braun, Jan Kumlin, Christoph Tresp, Ivan Mirgorodskiy, Florian Christaller, Hans Peter Büchler, Sebastian Hofferberth
Publikováno v:
Physical Review X, Vol 7, Iss 4, p 041010 (2017)
The interaction of a single photon with an individual two-level system is the textbook example of quantum electrodynamics. Achieving strong coupling in this system has so far required confinement of the light field inside resonators or waveguides. He
Externí odkaz:
https://doaj.org/article/ecc0c5fb70e64f30b6edbdebba30918b
Autor:
Przemyslaw Bienias, Hans Peter Büchler
Publikováno v:
New Journal of Physics, Vol 18, Iss 12, p 123026 (2016)
We study the propagation of Rydberg slow light polaritons through an atomic medium in the regime where the dispersion relation for the polaritons is well described by the slow light velocity alone. In this regime, the quantum many-body problem can be
Externí odkaz:
https://doaj.org/article/0b3aff7dbc9146cf80e9b4acfb8ab6ff