Spring 2022

Wolfram Alpha's Quantum Framework

Speaker(s): 
Dr. Mads Bahrami
Dates: 
Thursday, May 12, 2022 - 2:00pm

About Dr. Bahrami
Mads Bahrami received his PhD in physical chemistry from Sharif University of Technology. His field of research is the foundation of quantum theory and quantum computation. He did his postdoctoral research in the EU under a Marie Curie fellowship and also in the US at the University of California, Riverside, developing new methods for quantum error correction in noising environment. Mads is currently the director of educational programs at Wolfram Research, and leading the Wolfram quantum team:...

Quantum simulation using variational techniques

Speaker(s): 
Aniruddha Bapat
Dates: 
Tuesday, May 10, 2022 - 11:00am

Abstract: The advent of quantum computing has created novel opportunities for the direct simulation of quantum systems on quantum hardware. However, in the near term, quantum devices will possess limited scope due to noise and size limitations. Due in part to these constraints, variational algorithms have gained popularity as a powerful yet economical alternative to traditional digital quantum computation. 

In this talk, I will discuss two variational frameworks, parameterized quantum circuits and tensor networks. For each method I will give an overview followed by...

Counting holes in a Fermi sea without diving in

Speaker(s): 
Pok Man Tam
Dates: 
Tuesday, May 10, 2022 - 11:00am

Abstract: Topologists can differentiate between bagels and pretzels by simply counting holes in each bread. The number of holes, formally described by the Euler characteristic, is a topological invariant insensitive to smooth deformation of the shape and size of an object. In condensed matter physics, we study an analogue of pastry, the Fermi sea. Like bread filled with flour, Fermi sea is filled with electrons, and nature provides a variety of exotic topology, e.g. metal copper has a Fermi sea like a pretzel with 4 handles. In this talk, I will introduce physical...

Designer electronic states in van der Waals heterostructures

Speaker(s): 
Brian LeRoy
Dates: 
Monday, April 11, 2022 - 3:30pm

A CMU/Pitt Colloquium

Abstract: The ability to create arbitrary stacking configurations of layered two-dimensional materials has opened the way to the creation of designer band structures.  Twisted bilayer graphene and graphene on hexagonal boron nitride are two of the simplest examples of such a van der Waals heterostructure where the electronic properties of the composite material can be fundamentally different from either individual material.   These van der Waals heterostructures can be formed using a wide variety of layered materials including...

Grad Students Win NSF Fellowship and Honorable Mention

  • By Jennifer Zheng
  • 5 April 2022

Congratulations to Boris Mesits who has won an NSF Graduate Research Fellowship! He is supported to work on ultrasensitive superconducting magnetometry and electron spin resonance in the laboratory of Michael Hatridge.  We'd also like to congratulate Evan McKinney, advised by Michael Hatridge and Alex Jones, who won honorable mention for his proposal on studying architectures for modular quantum computing with superconducting circuits.

Quantum Materials as a Resource

Speaker(s): 
Jorn Venderbos
Dates: 
Monday, March 28, 2022 - 3:30pm

A Pitt/CMU Colloquium

Abstract: The study of quantum materials has emerged as a rapidly developing field of condensed matter and materials physics. Quantum materials are materials that have properties and exhibit phenomena deeply rooted in the laws of quantum physics, which potentially allows us to exploit these laws for future applications in quantum-based energy and computing technology. Furthermore, in addition to providing a desirable resource, quantum materials also offer unique insight into the fundamental and building blocks of matter and the...

High Resolution Imaging of Excited State Dynamics in Nanomaterials

Speaker(s): 
Martin Gruebele
Dates: 
Friday, April 1, 2022 - 1:00pm

A Pitt Chem Seminar

Abstract: Two topics will be covered in the general area of tunneling microscopy: looking at surface dynamics of glasses on a millisecond to hour scale, and excited state dynamics of nanomaterials on the sub-picosecond to nanosecond scale, both with sub-nm resolution. The technique of “SMA-STM” works by shining modulated light on a sample and detecting the resulting change in electron density with an STM tip, which also enhances the evanescent light wave that excites the sample. I’ll show that we can build energy landscapes of glass...

Levy and Givi wins 2022 Provost’s Award for Excellence in Doctoral Mentoring

  • By Jennifer Zheng
  • 15 March 2022

Congratulations to Jeremy Levy and Peyman Givi for receiving the 2022 Provost’s Award for Excellence in Doctoral Mentoring. 

The Provost’s Award for Excellence in Doctoral Mentoring will annually recognize outstanding mentoring of graduate students seeking a research doctorate degree. Up to four awards will be made each year. . .

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