Events

Jiawei Mei - Southern University of Science and Technology, China

The toric code is a topological quantum error correcting code, and an example of a stabilizer code, defined on a two-dimensional spin lattice. It also represents the simplest example of topological order -- Z2 topological order that was first studied in the context of Z2 spin liquid. I will talk about our recent progress in the search for a toric code topological order in the kagome antiferromagnetic spin system.

Jie Lin of the Department of Physics and Astronomy is presenting his thesis:

Security proofs for quantum key distribution protocols by numerical approaches

Jie is supervised by IQC faculty member Norbert Lütkenhaus.

Benjamin Lovitz of the Department of Physics and Astronomy is presenting his thesis:

Practical Quantum Fingerprinting and Appointment Scheduling

Benjamin is supervised by IQC faculty member Norbert Lütkenhaus.

Back by popular demand, CryptoWorks21 will once again launch the Intellectual Property (IP) Management Lunch and Learn Lecture Series! Our knowledgeable speakers will provide more in-depth presentation built from the previous sessions.

The lectures are designed for researchers working in areas related to information technology, including cryptography and quantum technology.

Physics and Astronomy - Milestone Series

Corey Rae McCrae

​PhD student
Department of Physics & Astronomy and Institute for Quantum Computing

Colloquium: Ania Jayich, University of California, Santa Barbara

The nitrogen vacancy (NV) center in diamond is an atomic-­scale defect that exhibits remarkably coherent quantum properties in a uniquely accessible way: at room temperature, in ambient conditions, and even immersed in biological environments. NV centers are being explored for a variety of quantum technologies, including quantum sensing and quantum information processing.

Colloquium: Mohammad Hafezi, University of Maryland/Joint Quantum Institute

There are tremendous efforts underway to better understand systems with topological order --- global properties that are not discernible locally. The best-known examples are quantum Hall effects in electronic systems, where insensitivity to local properties manifests itself as conductance through edge states which are insensitive to defects and disorder.

Colloquium: Jayakanth Ravichandran - University of Southern California

Perovskite Chalcogenides are a new class of semiconductors, which have tunable band gap in the visible to infrared part of the electromagnetic spectrum. Besides this band gap tunability, they offer a unique opportunity to realize large density of states semiconductors with high carrier mobility. In this talk, I will discuss some of the advances made both in my research group and in the research community in theory, synthesis of these materials and understanding their optoelectronic properties.

M.Sc. Thesis Presentation

Candidate: Zimeng Wang

Seminar: Bhaskaran Muralidharan

We describe two distinct applications of quantum dots [1-3] from a quantum transport perspective. In the first part, we bring in a Bayesian viewpoint to the analysis of clocks, specifically taking the Salecker Wigner clock formulation [4] and explore a novel set up to estimate the tunneling time [1] between electrons in a contact and a quantum dot weakly coupled to it. Using the exponential tunneling distribution as priors for clocks, we analyze the case of a single precessing spin in a quantum dot.