University of Birmingham > Talks@bham > Theoretical Physics Seminars > Prediction of Toric Code Topological Order from Rydberg Blockade

Prediction of Toric Code Topological Order from Rydberg Blockade

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Dr Hannah Price.

The physical realization of Z_2 topological order as encountered in the paradigmatic toric code has proven to be an elusive goal. In this talk, I will show that this phase of matter can be created in a two-dimensional array of strongly interacting Rydberg atoms on a ruby lattice. We will first consider a Rydberg blockade model: this effectively realizes a monomer-dimer model on the kagome lattice with a single-site kinetic term, for which we observe a Z_2 spin liquid using the numerical density matrix renormalization group method. Next, this phase is shown to persist upon including realistic, algebraically-decaying van der Waals interactions. Moreover, one can directly access the topological loop operators of this model, which can be measured experimentally using a dynamic protocol, providing a ``smoking gun’’ experimental signature of the topological phase. Time permitting, I will show how to trap an emergent anyon and realize different topological boundary conditions, and more broadly discuss the implications for exploring fault-tolerant quantum memories.

This talk is based on work with Mikhail Lukin and Ashvin Vishwanath ( ).

This talk is part of the Theoretical Physics Seminars series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.


Talks@bham, University of Birmingham. Contact Us | Help and Documentation | Privacy and Publicity.
talks@bham is based on from the University of Cambridge.