Seminars

Entanglement Renormalization for Weakly Interacting Fields (Ali Mollabashi)

Entanglement Renormalization for Weakly Interacting Fields

Date: Nov 14, 2018
Time: 10:30 AM (Local Time Germany)
Speaker: Ali Mollabashi
Max-Planck-Institut für Physik, München
Location: Max-Planck-Institut für Quantenoptik
Room: Hörsaal, Raum B 0.32 / New lecture hall, Room B 0.32
Host: MPQ, Theory Division

I will introduce a specific method how to generalize cMERA in presence of interactions. The method is based on Hamiltonian renormalization of spatial degrees of freedom. Using this method I will work out a circuit starting from an appropriate IR state and ending up with the vacuum state of phi^4 theory. [more]

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

Date: Nov 7, 2018
Time: 10:30 AM (Local Time Germany)
Speaker: Siddhant Das
Ludwig-Maximilians-Universität (LMU) München
Location: Max-Planck-Institut für Quantenoptik
Room: New Lecture Hall, Room B 0.32
Host: MPQ, Theory Division

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. [more]

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

Date: Oct 30, 2018
Time: 11:30 AM - 01:00 PM (Local Time Germany)
Speaker: Jiehang Zhang
Joint Quantum Institute of the University of Maryland
Location: Max-Planck-Institut für Quantenoptik
Room: Hörsaal, Raum B 0.32 / New lecture hall, Room B 0.32
Host: MPQ, Theory Division

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. [more]

From Levitated Nanomagnets to Quantum Magnonics (Cosimo Carlo Rusconi)

Date: Oct 17, 2018
Time: 10:30 AM - 12:00 PM (Local Time Germany)
Speaker: Cosimo Carlo Rusconi
Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences
Location: Max-Planck-Institut für Quantenoptik
Room: New Lecture Hall, Room B 0.32
Host: MPQ, Theory Division

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

Untangling Entanglement and Chaos (Meenu Kumari)

Date: Oct 2, 2018
Time: 11:30 AM - 01:00 PM (Local Time Germany)
Speaker: Meenu Kumari, Institute for Quantum Computing (IQC), University of Waterloo, Canada
Location: Max-Planck-Institut für Quantenoptik
Room: New Lecture Hall, Room B 0.32
Host: MPQ, Theory Division

How does classical chaos affect the generation of quantum entanglement? What signatures of chaos exist at the quantum level and how can they be quantified? [more]