Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Bissbort, Ulf"'
Publikováno v:
Phys. Rev. A 98, 063635 (2018)
One of the major challenges in realizing a strongly interacting lattice gas using Rydberg states is the occurrence of avalanche loss processes. As these are directly proportional to the total Rydberg fraction, the commonly suggested solution is using
Externí odkaz:
http://arxiv.org/abs/1806.05911
Publikováno v:
Eur. Phys. J. Special Topics 227, 313-322 (2018)
We study the response of a particle current to dissipative dephasing in an interacting, few-body fermionic lattice system. The particles are prepared in the ground state in presence of an artificial magnetic gauge field, which is subsequently quenche
Externí odkaz:
http://arxiv.org/abs/1712.06703
Publikováno v:
Phys. Rev. Lett. 122, 013205 (2019)
We present a protocol to selectively decouple, recouple, and engineer effective couplings in mesoscopic dipolar spin networks. In particular, we develop a versatile protocol that relies upon magic angle spinning to perform Hamiltonian engineering. By
Externí odkaz:
http://arxiv.org/abs/1710.03987
Publikováno v:
Phys. Rev. E 95, 062143 (2017)
We introduce a minimalistic quantum motor for coupled energy and particle transport. The system is composed of two spins, each coupled to a different bath and to a particle which can move on a ring consisting of three sites. We show that the energy f
Externí odkaz:
http://arxiv.org/abs/1609.02916
Publikováno v:
Phys. Rev. E 95, 030102 (2017)
We present a self-contained engine, which is made of one or more two-level systems, each of which is coupled to a single bath, as well as to a common load composed of a particle on a tilted lattice. We show that the energy and the entropy absorbed by
Externí odkaz:
http://arxiv.org/abs/1609.02294
Publikováno v:
Phys. Rev. B 94, 214305 (2016)
We present a self-contained operator-based approach to derive the spectrum of trapped ions. This approach provides the complete normal form of the low energy quadratic Hamiltonian in terms of bosonic phonons, as well as an effective free particle deg
Externí odkaz:
http://arxiv.org/abs/1608.07235
Publikováno v:
Phys. Rev. X 5, 011001 (2015)
Nuclear spin imaging at the atomic level is essential for the understanding of fundamental biological phenomena and for applications such as drug discovery. The advent of novel nano-scale sensors has given hope of achieving the long-standing goal of
Externí odkaz:
http://arxiv.org/abs/1407.3134
We present a generalized quasi-particle theory for bosonic lattice systems, which naturally contains all relevant collective modes, including the Higgs amplitude in the strongly correlated superfluid. In contrast to Bogoliubov theory, this non-pertur
Externí odkaz:
http://arxiv.org/abs/1401.4466
Autor:
Uehlinger, Thomas, Jotzu, Gregor, Messer, Michael, Greif, Daniel, Hofstetter, Walter, Bissbort, Ulf, Esslinger, Tilman
Publikováno v:
Phys. Rev. Lett. 111, 185307 (2013)
We create an artificial graphene system with tunable interactions and study the crossover from metallic to Mott insulating regimes, both in isolated and coupled two-dimensional honeycomb layers. The artificial graphene consists of a two-component spi
Externí odkaz:
http://arxiv.org/abs/1308.4401
Publikováno v:
Phys. Rev. A 81, 063643 (2010)
We discuss the stochastic mean-field theory (SMFT) method which is a new approach for describing disordered Bose systems in the thermodynamic limit including localization and dimensional effects. We explicate the method in detail and apply it to the
Externí odkaz:
http://arxiv.org/abs/0911.0923