Contact

Quantum Many-Body Systems
Secretariat: Kristina Schuldt
Phone:        +49 89 3 29 05 - 138

Theory
Secretariat: Andrea Kluth
Phone:        +49 89 3 29 05 - 736

Laser Spectroscopy
Secretariat: Ingrid Hermann
Phone:        +49 89 3 29 05 - 712

Attosecond Physics
Secretariat: Corin Abert
Phone:        +49 89 3 29 05 - 612

Quantum Dynamics
Secretariat: Iris Schwaiger
Phone:        +49 89 3 29 05 - 711

Seminars

Seminars

On an irregular basis various Special Seminars take place at the MPQ. The seminars are organized by scientists of our divisions, administration or staff representatives.

The location will be announced with the event.

Month:

Realizing Feynman’s Dream of a Quantum Simulator

IMPRS-APS: Realizing Feynman’s Dream of a Quantum Simulator (Prof. Immanuel Bloch)

More than 30 years ago, Richard Feynman outlined his vision of a quantum simulator for carrying out complex calculations on physical problems. Today, his dream is a reality in laboratories around the world. [more]

Quantum physics with compound atom-ion systems

Quantum physics with compound atom-ion systems (Dr. Antonio Negretti)

In this talk I shall illustrate how ultracold quantum systems of atoms and ions can be used for quantum simulation and information processing as well as for investigating many-body quantum physics. I shall thus present a few theoretical examples on how to control an atomic bosonic Josephson junction with a single trapped ion, the formation of molecular ions, and how to engineer long-ranged atom-ion interactions with laser fields and Rydberg excitations. [more]

A source of light-matter entanglement for quantum state distribution over hybrid matter platforms

A source of light-matter entanglement for quantum state distribution over hybrid matter platforms (Dr. Pau Farrera)

In this talk I will speak about our source of light-matter quantum states based on laser-cooled atoms. In particular, I will explain the capabilities developed in order to transfer photonic qubits from this system to another matter platform that consists on a crystal doped with rare-earth ions. Photonic qubits generated by the atomic cloud were frequency converted and temporally shaped in order to have an optimum interaction with the ions in the crystal. These capabilities enabled to perform quantum state transfer between these two very different matter systems: the laser-cooled gas and the crystal. [more]

Entanglement Renormalization for Weakly Interacting Fields

Entanglement Renormalization for Weakly Interacting Fields (Ali Mollabashi)

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]

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. [more]

 
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