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Dr Benjamin Béri
Office: 540a Mott Bld
Phone: +44(0)1223 3 37258
Email: bfb26 @ cam.ac.uk
TCM Group, Cavendish Laboratory
19 JJ Thomson Avenue,
Cambridge, CB3 0HE UK.
Also at DAMTP.
I am interested in novel forms of matter emerging from the collective quantum mechanical behaviour of many particles. In my research, these particles may be electrons in certain solid-state materials and devices or a collection of atoms at "ultracold" temperatures.
Most of my current research is on so-called topological phases: in these systems particles develop a strange kind of order that has no local order parameter (like magnetisation is for ferromagnets), but which appears through nonlocal "topological invariants" (abstract analogues of the integer counting the twists of the locally featureless strip on the right). This strange order has a number of striking consequences, such as the emergence of conducting boundaries immune to backscattering by impurities, or exotic particles that underlie novel schemes for quantum information processing.Möbius strip photo by David Benbennick - CC:BY-SA.
- Exact nonequilibrium transport in the topological Kondo effect. Phys. Rev. Lett. 119 027701 (2017)
- Multichannel Kondo impurity dynamics in a Majorana device. , Phys. Rev. Lett. 113 076401 (2014)
- Majorana-Klein hybridization in topological superconductor junctions. Phys. Rev. Lett. 110 216803 (2013)
- Topological Kondo effect with Majorana fermions. Phys. Rev. Lett. 109 156803 (2012)
- Z2 topological insulators in ultracold atomic gases. Phys. Rev. Lett. 107 145301 (2011)
- Local tensor network for strongly correlated projective states. Phys. Rev. Lett. 106 156401 (2011)
- Domain wall in a chiral p-wave superconductor: a pathway for electrical current. Phys. Rev. Lett. 104 147001 (2010)
- Topologically stable gapless phases of time-reversal-invariant superconductors. Phys. Rev. B 81 134515 (2010)