Visualization of the Gödel universe

Autor: M Buser, E Kajari, W P Schleich

Publikováno v: New Journal of Physics, Vol 15, Iss 1, p 013063 (2013)

The standard model of modern cosmology, which is based on the Friedmann–Lemaître–Robertson–Walker metric, allows the definition of an absolute time. However, there exist (cosmological) models consistent with the theory of general relativity fo

Externí odkaz: https://doaj.org/article/60dfbb545d0a4b83b4e1605c8b599ad3

Quantum reservoirs with ion chains

Autor: Bruno G. Taketani, Thomas Busch, Thomás Fogarty, E. Kajari, Giovanna Morigi

Publikováno v: Physical Review A. 90

Ion chains are promising platforms for studying and simulating quantum reservoirs. One interesting feature is that their vibrational modes can mediate entanglement between two objects which are coupled through the vibrational modes of the chain. In t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1da0ca3e5cfbd24d3b3041eb4edbacae
https://doi.org/10.1103/physreva.90.012312

Entangling two defects via a surrounding crystal

Autor: E. Kajari, Thomas Busch, Bruno G. Taketani, Thomás Fogarty, Giovanna Morigi, Alexander Wolf

We theoretically show how two impurity defects in a crystalline structure can be entangled through coupling with the crystal. We demonstrate this with a harmonic chain of trapped ions in which two ions of a different species are embedded. Entanglemen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c198f7310fdea6df81317fdd6cca062

The Space Atom Interferometer project: status and prospects

Autor: T. Valenzuela, Giovanni Modugno, E. Kajari, Marco Prevedelli, A Senger, Klaus Sengstock, Ernst M. Rasel, Wolfgang Ertmer, Fiodor Sorrentino, Achim Peters, M. Hauth, Massimo Inguscio, Patrick Windpassinger, M Schmidt, Hansjoerg Dittus, Wolfgang P. Schleich, Kai Bongs, Reinhold Walser, Jonas Hartwig, Arnaud Landragin, M. de Angelis, Thorben Könemann, Guillaume Stern, Claus Lämmerzahl, K Huang, Philippe Bouyer, F. Pereira Dos Santos, Sven Herrmann, Luigi Cacciapuoti, Guglielmo M. Tino

Publikováno v: J. Phys.: Conf. Ser.
J. Phys.: Conf. Ser., 327, pp.2050, 2011, ⟨10.1088/1742-6596/327/1/012050⟩
Journal of Physics. Conference Series
International Symposium on Physical Sciences in Space
International Symposium on Physical Sciences in Space, Jul 2011, Bonn, Germany, Germany. pp.2050, ⟨10.1088/1742-6596/327/1/012050⟩

This paper presents the current status and future prospects of the Space Atom Interferometer project (SAI), funded by the European Space Agency. Atom interferometry provides extremely sensitive and accurate tools for the measurement of inertial force

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8be21c255d95df915a3ce799b0dacbd
http://hdl.handle.net/11585/108379

Entangling two distant oscillators with a quantum reservoir

Autor: Giovanna Morigi, Gabriele De Chiara, Eric Lutz, E. Kajari, Alexander Wolf

Publikováno v: EPL (Europhysics Letters)

The generation of entanglement between two oscillators that interact via a common reservoir is theoretically studied. The reservoir is modeled by a one-dimensional harmonic crystal initially in thermal equilibrium. Starting from a separable state, th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77fc77b9ddd1918f9e99f49cc0b09f30
https://doi.org/10.1209/0295-5075/95/60008