Emil's homepage


Me in office.
THIS PAGE IS OBSOLETE. I have moved to Berlin. Welcome to the homepage of Emil Johansson Bergholtz! I am a theoretical physicist ("Distinguished PKS Postdoctoral Fellow") at the Max Planck Institute for the Physics of Complex Systems (MPI-PKS) in Dresden, Germany. Within MPI-PKS I'm associated with the condensed matter group lead by Roderich Moessner.

My primary research interests lie in the field of strongly correlated quantum matter, and in particular, my focus has been on various phases of the (fractional) quantum Hall system. Lately I've also had interests in frustrated quantum magnets (in 2 and 3D) and exotic 1D spin chains as well as in entanglement properties of strongly correlated states. In particular present projects include:

One-dimensional limits of the fractional quantum Hall system

Entanglement in fractional quantum Hall states

Valence bond solids on the hyper-kagome lattice

Unusual spin chains in connection with quantum Hall states

Random stuff from my projects.


Here is my CV and a list of publications at ADS (other aspects at ResearchID and ResearchID labs).
Some history: I defended my PhD thesis "One-dimensional theory of the quantum Hall system" in the Quantum and Field theory group at Stockholm University on May 28, 2008 (here is a picture, my introductory talk, and the document showing that I survived...). My thesis advisor was Anders Karlhede, and the faculty opponent was Nick Read form Yale. I also did my undergraduate studies at Fysikum, Stockholm University, where I started at the so called "forskargrenen" in 1999 and presented my Master's thesis in 2002. I defended my Licentiate thesis on September 28, 2005.

Research etc

I'm interested in quantum physics, and in particular in systems where strong interactions and lead to novel phenomena. My research efforts during my time as a PhD student concentrated on the fractional quantum Hall (FQH) effect. The main theme of my work has been to develop a one-dimensional description of various phases of the FQH system. I also looked into the conformal field theory (CFT) description of (some of) these phases.

New directions in my research include frustrated (quantum) magnetism, spin chains/integrable models and concepts of quantum information in condensed matter systems.

I enjoy giving public popular science talks as well as specialized seminars. Here is a recent popular science talk (in Swedish, a short version) OrdningOchReda.pdf, a scientific talk on the fractional quantum Hall effect given at ENS, Paris: Paris08.pdf

My recent (2010) abstracts are summarized in the following figure:


Some events

I attend many of the conferences at MPI-PKS - here's a list of upcoming events.