Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Roos, Christian F."'
The oscillating magnetic field produced by unbalanced currents in radio-frequency ion traps induces transition frequency shifts and sideband transitions that can be harmful to precision spectroscopy experiments. Here, we describe a methodology, based
Externí odkaz:
http://arxiv.org/abs/2405.18883
Autor:
Mallweger, Marion, Guevara-Bertsch, Milena, Torosov, Boyan T., Thomm, Robin, Kuk, Natalia, Parke, Harry, Roos, Christian F., Higgins, Gerard, Hennrich, Markus, Vitanov, Nikolay V.
In this work, we present a method for measuring the motional state of a two-level system coupled to a harmonic oscillator. Our technique uses ultra-narrowband composite pulses on the blue sideband transition to scan through the populations of the dif
Externí odkaz:
http://arxiv.org/abs/2402.10041
Autor:
Joshi, Lata Kh, Franke, Johannes, Rath, Aniket, Ares, Filiberto, Murciano, Sara, Kranzl, Florian, Blatt, Rainer, Zoller, Peter, Vermersch, Benoît, Calabrese, Pasquale, Roos, Christian F., Joshi, Manoj K.
Publikováno v:
Phys. Rev. Lett. 133, 010402, 2024
The non-equilibrium physics of many-body quantum systems harbors various unconventional phenomena. In this study, we experimentally investigate one of the most puzzling of these phenomena -- the quantum Mpemba effect, where a tilted ferromagnet resto
Externí odkaz:
http://arxiv.org/abs/2401.04270
Autor:
Vybornyi, Ivan, Dreissen, Laura S., Kiesenhofer, Dominik, Hainzer, Helene, Bock, Matthias, Ollikainen, Tuomas, Vadlejch, Daniel, Roos, Christian F., Mehlstäubler, Tanja E., Hammerer, Klemens
Publikováno v:
PRX Quantum 4, 040346 (2023)
Coulomb crystals of cold trapped ions are a leading platform for the realisation of quantum processors and quantum simulations and, in quantum metrology, for the construction of optical atomic clocks and for fundamental tests of the Standard Model. F
Externí odkaz:
http://arxiv.org/abs/2306.07880
Autor:
Joshi, Manoj K., Kokail, Christian, van Bijnen, Rick, Kranzl, Florian, Zache, Torsten V., Blatt, Rainer, Roos, Christian F., Zoller, Peter
Publikováno v:
Nature 624, 539-544 (2023)
Entanglement is a distinguishing feature of quantum many-body systems, and uncovering the entanglement structure for large particle numbers in quantum simulation experiments is a fundamental challenge in quantum information science. Here we perform e
Externí odkaz:
http://arxiv.org/abs/2306.00057
Autor:
Franke, Johannes, Muleady, Sean R., Kaubruegger, Raphael, Kranzl, Florian, Blatt, Rainer, Rey, Ana Maria, Joshi, Manoj K., Roos, Christian F.
Publikováno v:
Nature (2023)
The control over quantum states in atomic systems has led to the most precise optical atomic clocks to date. Their sensitivity is currently bounded by the standard quantum limit, a fundamental floor set by quantum mechanics for uncorrelated particles
Externí odkaz:
http://arxiv.org/abs/2303.10688
Autor:
Kiesenhofer, Dominik, Hainzer, Helene, Zhdanov, Artem, Holz, Philip C., Bock, Matthias, Ollikainen, Tuomas, Roos, Christian F.
Publikováno v:
PRX Quantum 4, 020317 (2023)
Linear strings of trapped atomic ions held in radio-frequency (rf) traps constitute one of the leading platforms for quantum simulation experiments, allowing for the investigation of interacting quantum matter. However, linear ion strings have drawba
Externí odkaz:
http://arxiv.org/abs/2302.00565
Autor:
Kranzl, Florian, Birnkammer, Stefan, Joshi, Manoj K., Bastianello, Alvise, Blatt, Rainer, Knap, Michael, Roos, Christian F.
Publikováno v:
Phys. Rev. X 13, 031017 (2023)
Over the recent years coherent, time-periodic modulation has been established as a versatile tool for realizing novel Hamiltonians. Using this approach, known as Floquet engineering, we experimentally realize a long-ranged, anisotropic Heisenberg mod
Externí odkaz:
http://arxiv.org/abs/2212.03899
Autor:
Kranzl, Florian, Lasek, Aleksander, Joshi, Manoj K., Kalev, Amir, Blatt, Rainer, Roos, Christian F., Halpern, Nicole Yunger
Publikováno v:
Phys. Rev. X Quantum 4, 020318 (2023)
Quantum simulators have recently enabled experimental observations of quantum many-body systems' internal thermalization. Often, the global energy and particle number are conserved, and the system is prepared with a well-defined particle number - in
Externí odkaz:
http://arxiv.org/abs/2202.04652
Autor:
Kranzl, Florian, Joshi, Manoj K., Maier, Christine, Brydges, Tiff, Franke, Johannes, Blatt, Rainer, Roos, Christian F.
Scaling a trapped-ion based quantum simulator to a large number of ions creates a fully-controllable quantum system that becomes inaccessible to numerical methods. When highly anisotropic trapping potentials are used to confine the ions in the form o
Externí odkaz:
http://arxiv.org/abs/2112.10655