Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Gammelmark, S."'
Publikováno v:
Phys. Rev. A 89, 043839 (2014)
We analyze the quantum jumps of an atom interacting with a cavity field. The strong atom- field interaction makes the cavity transmission depend on the time dependent atomic state, and we present a Hidden Markov Model description of the atomic state
Externí odkaz:
http://arxiv.org/abs/1312.5827
A density matrix {\rho}(t) yields probabilistic information about the outcome of measurements on a quantum system. We introduce here the past quantum state, which, at time T, accounts for the state of a quantum system at earlier times t < T. The past
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f887da0009b5d72e44cd2b9c623a3327
http://arxiv.org/abs/1305.0681
http://arxiv.org/abs/1305.0681
Autor:
Gammelmark, S��ren, M��lmer, Klaus
Precision measurements with quantum systems rely on our ability to trace the differences between experimental signals to variations in unknown physical parameters. In this Letter we derive the Fisher information and the ensuing Cramer-Rao sensitivity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81546c0b389e844c7150fc9b9c3710f2
We study polar molecules with long-range dipole-dipole interactions confined to move on a two-leg ladder for different orientations of the molecular dipole moments with respect to the ladder. Matrix product states are employed to calculate the many-b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e94af513c4cfb8fe4233086845d72eb
Autor:
Gammelmark, S��ren, M��lmer, Klaus
We calculate the ground state and simulate the dynamics of a finite chain of spins with Ising nearest-neighbor interactions and a Dicke collective spin interaction with a single mode cavity field. We recover the signatures of first and second order p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d4d5b79df27933ea6657f5582a7bbb8
Autor:
Gammelmark, S��ren, M��lmer, Klaus
We review the introduction of likelihood functions and Fisher information in classical estimation theory, and we show how they can be defined in a very similar manner within quantum measurement theory. We show that the stochastic master equations des
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b3d32a3a4b8a654c1159ebdb9a43399
Autor:
Gammelmark, S��ren, Eckardt, Andr��
We theoretically study the adiabatic preparation of an antiferromagnetic phase in a mixed Mott insulator of two bosonic atom species in a one-dimensional optical lattice. In such a system one can engineer a tunable parabolic inhomogeneity by controll
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb30b228070d256977bf7c136b0e9f92
Autor:
Gammelmark, S��ren, M��lmer, Klaus
We investigate the thermodynamics of a combined Dicke- and Ising-model which exhibits a rich phenomenology arising from the second order and quantum phase transitions from the respective models. The partition function is calculated using mean field t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be50aa4ee99dd2f3fc1687728540375d
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