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Kontakt

Quanten-Vielteilchensysteme
Sekretariat: Kristina Schuldt
Telefon:      +49 89 3 29 05 - 138

Theorie
Sekretariat: Andrea Kluth
Telefon:      +49 89 3 29 05 - 736

Laserspektroskopie
Sekretariat: Ingrid Hermann
Telefon:      +49 89 3 29 05 - 712

Attosekundenphysik
Sekretariat: Corin Abert
Telefon:      +49 89 3 29 05 - 612

Quantendynamik
Sekretariat: Iris Schwaiger
Telefon:      +49 89 3 29 05 - 711

Seminare 2015

Seminare

Seminare

In unregelmäßigen Abständen finden am MPQ Seminare statt. Diese werden von den Wissenschaftlern der einzelnen Abteilungen organisiert.

Der Veranstaltungsort wird mit dem jeweiligen Seminar bekannt gegeben.

Monat:

Ultrafast electron control: from the particle accelerator on a chip to attosecond charge transfer in a Schottky junction

IMPRS-APS Talk: Ultrafast electron control: from the particle accelerator on a chip to attosecond charge transfer in a Schottky junction (Prof. Dr. Hommelhoff)

Firstly, I will deal with a new way of accelerating charged particles based on femtosecond laser pulses and nanophotonic structures. The concept is exactly the same as in classical RF and microwave accelerators, only with roughly five orders of magnitude faster oscillating driving fields and structures that are smaller by the same factor. With the help of such small lithographically produced dielectric structures we have demonstrated not only efficient acceleration of electrons, but also deflection and focusing. Currently, we are building a prototype "accelerator on a chip". The current status will be reported. [mehr]

Arrival time distributions and spin in quantum mechanics-A Bohmian perspective (Siddhant Das)

Arrival time distributions and spin in quantum mechanics-A Bohmian perspective (Siddhant Das)

The arrival time statistics of spin-1/2 particles governed by Pauli's equation, and defined by their Bohmian trajectories, show unexpected and very well articulated features. Comparison with other proposed statistics of arrival times that arise from either the usual (convective) quantum flux or from semiclassical considerations suggests testing the notable deviations in an arrival time experiment, thereby probing the predictive power of Bohmian trajectories. The suggested experiment, including the preparation of the wave functions, could be done with present-day experimental technology. [mehr]

Quantum simulations of non-equilibrium dynamics with ion spin chains (Jiehang Zhang)

Trapped ions are ideal candidates for engineering quantum systems with individual resolution. Qubits are encoded with the internal levels of the ions, and controlled with laser-driven interactions. Such a system present an excellent coherence time and can find wide applications in quantum simulations and quantum computing. [mehr]

From Levitated Nanomagnets to Quantum Magnonics (Cosimo Carlo Rusconi)

From Levitated Nanomagnets to Quantum Magnonics (Cosimo Carlo Rusconi)

In this talk, I will present our results concerning how to describe and use the quantum degrees of freedom of a levitated nanomagnet. [mehr]

Quantum anomaly and transport in the 2D Fermi gas

Quantum anomaly and transport in the 2D Fermi gas

A scale invariant system looks similar on different length scales. Usually this is realized only after some fine tuning, for instance near a phase transition or a scattering resonance. Remarkably, a classical gas in two dimensions is scale invariant for an arbitrary strength of contact interaction. This has striking consequences for its nonequilibrium scaling dynamics, in particular the breathing motion in a harmonic trapping potential. [mehr]

 
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