Videos

Latest Videos

TLDR s02e21: Season 2 Finale!

Talks coming up from Umesh Vazirani and Jonathan Sobota; Duquesne announces new applied physics Master’s program; Susan Fullerton and Ke Xu win NSF funding for 2D materials research; Lillian Chong and Anthony Bogetti win ACM’s New Gorden Bell Special Prize (and maybe save us from COVID soon??).

Applied Physics Program at Duquesne: https://duq.edu/academics/schools/nat...

Q2B Practical Quantum Computing: https://q2b.qcware.com/

OneQuantum Women in Quantum summit: https://www.runtheworld.today/app/inv...

Mmhmm app for Zoom: https://www.mmhmm.app
 

Dr. Mario Hofmann and Dr. Ya-Ping Hsieh from the National Taiwan University and Academia Sinica gave a talk titled "Why and How to Integrate 2D Materials in Future Electronics" in the Pittsburgh Quantum Institute Fall Seminar series on Nov. 17th, 2020.

Abstract: 2D materials are atomically thin nanostructures that are considered enabling elements in future electronics due to their unique geometry and exciting physical properties. To realize such applications, however, challenges in materials quality and production have to be addressed. In this talk we will first introduce a novel growth method that can enhance the scale, reliability, and controllability of 2D materials synthesis. Through control of the gas phase kinetics of the chemical vapor deposition process, efficient 2D materials growth could be achieved in atomically confined conditions. This advance permits the synthesis of 2D materials, such as graphene and TMDCs, at unprecedented scale and at crystalline qualities that rival exfoliated materials. Moreover, synthesis in the van-der-Waals gap of a host 2D material is demonstrated to facilitate a novel 2D crystallization process that yields novel transition-metal monochalcogenides with unexpected thermodynamic properties and finely adjustable thickness. Finally, the atomic length scales in confined growth enable controllable multi-precursor synthesis of diluted magnetic semiconductor 2D materials. The high quality of thus grown materials reveal novel interfacial ordering effects of 2D materials that are fundamentally different from bulk and present both challenges and opportunities towards their integration in electronics. Organization of ionic impurities on high quality graphene was shown to introduce a novel scattering process, that modulates graphene’s mobility by six times and is independent of charge concentration, necessitating improvements in materials’ characterization and handling. On the other hand, ordering effects at 2D materials interfaces can provide routes towards enhanced fabrication and performance of electronic devices. Interaction of graphene surfaces with gaseous adsorbates was shown to stabilize graphene in chemical reactions, permitting atomic-precision lithography approaches for large-scale semiconductor fabrication. Finally, assembly of monolayer water films on graphene under nanomechanical confinement was shown to produce a novel ferroelectric ice phase that can be exploited in mechanical memristive devices.

TLDR: s02e20

Quantum 2020 award winners! Seminar by Zubin Jacob, talk by Paul Crowell, NSF award to Peyman Givi, and classical cryptography vs quantum computers.

Quantum2020 Poster Gallery: https://www.pqi.org/content/quantum20...

QEDC jobs: https://quantumconsortium.org/quantum...

Computer science’s Crown jewel:https://www.wired.com/story/computer-.

Dr. Dave Wallace from the University of Pittsburgh gave a talk titled "What is 'Orthodox' Quantum Mechanics?" in the Pittsburgh Quantum Institute Fall Seminar series on Nov. 12th, 2020.

Abstract: What is called "orthodox'' quantum mechanics, as presented in standard foundational discussions, relies on two substantive assumptions --- the projection postulate and the eigenvalue-eigenvector link --- that do not in fact play any part in practical applications of quantum mechanics. I argue for this conclusion on a number of grounds, but primarily on the grounds that the projection postulate fails correctly to account for repeated, continuous and unsharp measurements (all of which are standard in contemporary physics) and that the eigenvalue-eigenvector link implies that virtually all interesting properties are maximally indefinite pretty much always. I present an alternative way of conceptualizing quantum mechanics that does a better job of representing quantum mechanics as it is actually used, and in particular that eliminates use of either the projection postulate or the eigenvalue-eigenvector link, and I reformulate the quantum measurement problem within this new presentation of orthodoxy.

S02E19: Seminar and interview with David Wallace; talks from Ya-Ping Hsieh, Mario Hofmann and Ognjen Ilic; Peter Shor celebrates the 25th anniversary of his breakthrough work in quantum computer; and 2016 Quantum Short finalist “Tom’s Breakfast.”

Peter Shor interview: https://www.nature.com/articles/d4158...

Tom’s Breakfast: https://shorts.quantumlah.org/entry/t...