Zobrazeno 1 - 10
of 338
pro vyhledávání: '"Jendrzejewski F"'
Publikováno v:
Phys. Rev. Lett. 122, 050403 (2019)
Aiming at a better understanding of anomalous and topological effects in gauge theories out-of-equilibrium, we study the real-time dynamics of a prototype model for CP-violation, the massive Schwinger model with a $\theta$-term. We identify dynamical
Externí odkaz:
http://arxiv.org/abs/1808.07885
Autor:
Bienias, P., Subhankar, S., Wang, Y., Tsui, T-C, Jendrzejewski, F., Tiecke, T., Juzeliunas, G., Jiang, L., Rolston, S. L., Porto, J. V., Gorshkov, A. V.
Publikováno v:
Phys. Rev. A 102, 013306 (2020)
There has been a recent surge of interest and progress in creating subwavelength free-space optical potentials for ultra-cold atoms. A key open question is whether geometric potentials, which are repulsive and ubiquitous in the creation of subwavelen
Externí odkaz:
http://arxiv.org/abs/1808.02487
Publikováno v:
Quantum Sci. Technol. 3 034010 (2018)
Quantum simulators have the exciting prospect of giving access to real-time dynamics of lattice gauge theories, in particular in regimes that are difficult to compute on classical computers. Future progress towards scalable quantum simulation of latt
Externí odkaz:
http://arxiv.org/abs/1802.06704
Autor:
Jendrzejewski, F., Eckel, S., Tiecke, T. G., Juzeliūnas, G., Campbell, G. K., Jiang, Liang, Gorshkov, A. V.
Publikováno v:
Phys. Rev. A 94, 063422 (2016)
We propose a new method for creating far-field optical barrier potentials for ultracold atoms with widths that are narrower than the diffraction limit and can approach tens of nanometers. The reduced widths stem from the nonlinear atomic response to
Externí odkaz:
http://arxiv.org/abs/1609.01285
Publikováno v:
V Kasper et al 2017 New J. Phys. 19 023030
We discuss the experimental engineering of model systems for the description of QED in one spatial dimension via a mixture of bosonic $^{23}$Na and fermionic $^6$Li atoms. The local gauge symmetry is realized in an optical superlattice, using heteron
Externí odkaz:
http://arxiv.org/abs/1608.03480
Autor:
Rentrop, T., Trautmann, A., Olivares, F. A., Jendrzejewski, F., Komnik, A., Oberthaler, M. K.
Publikováno v:
Phys. Rev. X 6, 041041 (2016)
The quantum vacuum fundamentally alters the properties of embedded particles. In contrast to classical empty space, it allows for creation and annihilation of excitations. For trapped particles this leads to a change in the energy spectrum, known as
Externí odkaz:
http://arxiv.org/abs/1605.01874
Autor:
Wang, Yi-Hsieh, Kumar, A., Jendrzejewski, F., Wilson, Ryan M., Edwards, Mark, Eckel, S., Campbell, G. K., Clark, Charles W.
The fundamental dynamics of ultracold atomtronic devices are reflected in their phonon modes of excitation. We probe such a spectrum by applying a harmonically driven potential barrier to a $^{23}$Na Bose-Einstein condensate in a ring-shaped trap. Th
Externí odkaz:
http://arxiv.org/abs/1510.02968
Publikováno v:
Phys. Rev. A 93, 063619 (2016)
We have experimentally measured transport of superfluid, bosonic atoms in a mesoscopic system: a small channel connecting two large reservoirs. Starting far from equilibrium (superfluid in a single reservoir), we observe first resistive flow transiti
Externí odkaz:
http://arxiv.org/abs/1506.08413
Publikováno v:
Phys. Rev. X 4, 031052 (2014)
Weak connections between superconductors or superfluids can differ from classical links due to quantum coherence, which allows flow without resistance. Transport properties through such weak links can be described with a single function, the current-
Externí odkaz:
http://arxiv.org/abs/1406.1095
Autor:
Jendrzejewski, F., Eckel, S., Murray, N., Lanier, C., Edwards, M., Lobb, C. J., Campbell, G. K.
Publikováno v:
Phys. Rev. Lett. 113, 045305 (25 July 2014)
We report the direct observation of resistive flow through a weak link in a weakly interacting atomic Bose-Einstein condensate. Two weak links separate our ring-shaped superfluid atomtronic circuit into two distinct regions, a source and a drain. Mot
Externí odkaz:
http://arxiv.org/abs/1402.3335