Zobrazeno 1 - 10
of 212
pro vyhledávání: '"Messer, Michael"'
Autor:
Levajkovic, Tijana, Messer, Michael
A method for the detection of changes in the expectation in univariate sequences is provided. Moving sum processes are studied. These rely on the selection of a tuning bandwidth. Here, a framework to overcome bandwidth selection is presented - the ba
Externí odkaz:
http://arxiv.org/abs/2103.01060
Autor:
Saltzman, Eliana B., Levin, Jay M., Dagher, Anna-Maria B., Messer, Michael, Kimball, Ryan, Lohnes, John, Mandelbaum, Bert R., Williams, Riley J., III, Amendola, Annuziato, Chiampas, George, Lau, Brian C.
Publikováno v:
In Journal of ISAKOS October 2023 8(5):325-331
Autor:
Messer, Michael
A method for change point detection is proposed. We consider a univariate sequence of independent random variables with piecewise constant expectation and variance, apart from which the distribution may vary periodically. We aim to detect change poin
Externí odkaz:
http://arxiv.org/abs/1904.01320
Autor:
Görg, Frederik, Sandholzer, Kilian, Minguzzi, Joaquín, Desbuquois, Rémi, Messer, Michael, Esslinger, Tilman
Publikováno v:
Nature Physics (2019) [https://rdcu.be/bO6eP]
Gauge fields that appear in models of high-energy and condensed matter physics are dynamical quantum degrees of freedom due to their coupling to matter fields. Since the dynamics of these strongly correlated systems is hard to compute, it was propose
Externí odkaz:
http://arxiv.org/abs/1812.05895
Autor:
Sandholzer, Kilian, Murakami, Yuta, Görg, Frederik, Minguzzi, Joaquín, Messer, Michael, Desbuquois, Rémi, Eckstein, Martin, Werner, Philipp, Esslinger, Tilman
Publikováno v:
Phys. Rev. Lett. 123, 193602 (2019)
We perform an ab-initio comparison between nonequilibrium dynamical mean-field theory and optical lattice experiments by studying the time evolution of double occupations in the periodically driven Fermi-Hubbard model. For off-resonant driving, the r
Externí odkaz:
http://arxiv.org/abs/1811.12826
Autor:
Messer, Michael, Sandholzer, Kilian, Görg, Frederik, Minguzzi, Joaquín, Desbuquois, Rémi, Esslinger, Tilman
Publikováno v:
Phys. Rev. Lett. 121, 233603 (2018)
We study the dynamics and timescales of a periodically driven Fermi-Hubbard model in a three-dimensional hexagonal lattice. The evolution of the Floquet many-body state is analyzed by comparing it to an equivalent implementation in undriven systems.
Externí odkaz:
http://arxiv.org/abs/1808.00506
Autor:
Dimitrova, Ivana, Lunden, William, Amato-Grill, Jesse, Jepsen, Niklas, Yu, Yichao, Messer, Michael, Rigaldo, Thomas, Puentes, Graciana, Weld, David, Ketterle, Wolfgang
Publikováno v:
Phys. Rev. A 96, 051603 (2017)
New phenomena of collective light scattering are observed when an elongated Bose-Einstein condensate is pumped by two non-interfering beams counterpropagating along its long axis. In the limit of small Rayleigh scattering rates, the presence of a sec
Externí odkaz:
http://arxiv.org/abs/1709.02028
Autor:
Görg, Frederik, Messer, Michael, Sandholzer, Kilian, Jotzu, Gregor, Desbuquois, Rémi, Esslinger, Tilman
Publikováno v:
Nature 553, 481-485 (2018)
Periodic driving can be used to coherently control the properties of a many-body state and to realize new phases which are not accessible in static systems. For example, exposing materials to intense laser pulses enables to provoke metal-insulator tr
Externí odkaz:
http://arxiv.org/abs/1708.06751
Autor:
Desbuquois, Rémi, Messer, Michael, Görg, Frederik, Sandholzer, Kilian, Jotzu, Gregor, Esslinger, Tilman
Publikováno v:
Phys. Rev. A 96, 053602 (2017)
Near-resonant periodic driving of quantum systems promises the implementation of a large variety of novel effective Hamiltonians. The challenge of Floquet engineering lies in the preparation and measurement of the desired quantum state. We address th
Externí odkaz:
http://arxiv.org/abs/1703.07767
Multi-scale detection of variance changes in renewal processes in the presence of rate change points
Non-stationarity of the rate or variance of events is a well-known problem in the description and analysis of time series of events, such as neuronal spike trains. A multiple filter test (MFT) for rate homogeneity has been proposed earlier that detec
Externí odkaz:
http://arxiv.org/abs/1606.06633