Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session P28: Fellows of FIAPIndustry Invited Undergrad Friendly
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Sponsoring Units: FIAP Chair: Michael Gordon, IBM Thomas J. Watson Research Center Room: 405-407 |
Wednesday, March 4, 2020 2:30PM - 3:06PM |
P28.00001: Semiconductor and Nanostructured Materials and Devices Invited Speaker: Nazir P Kherani TBD |
Wednesday, March 4, 2020 3:06PM - 3:42PM |
P28.00002: The Taming of the Superconducting Qubit: A Tale of Loss Invited Speaker: Conal Murray The potential of quantum computing to enable new ways of solving problems considered intractable on classical computing platforms relies on our understanding of how qubits operate. Qubit scaling follows different metrics than those associated with classical computing, driven by the requirement that the fragile states they possess can be retained for sufficiently long times. After a brief introduction into superconducting transmon qubits, I will discuss how dielectric loss impacts their relaxation times and how we can effectively model such behavior using analytical and computational approaches. The resulting analysis provides guidance into the design aspects associated with such qubits. A secondary issue that follows from manufacturing greater numbers of qubits involves unwanted communication among them. In particular, resonance modes generated in the substrate on which they reside can limit their operating frequencies. It is known that incorporating grounded, through-silicon vias can increase the corresponding cutoff frequency within the substrate. I will show how we can predict the resulting spectrum by considering the array of vias as an effective photonic crystal to arrive at a fundamental frequency dependent on the particulars of the via geometry. |
Wednesday, March 4, 2020 3:42PM - 4:18PM |
P28.00003: Addtive Manufacturing of Magnetic Materials for Clean Energy Applications Invited Speaker: Mariappan Paranthaman The main goal of this research is to develop a process to print near-net shape NdFeB polymer bonded magnets and to minimize the cost associated with manufacturing. One of the ways in which we can achieve this goal is by using an additive manufacturing technique to create complex shapes and geometries of polymer bonded magnets from a computer aided design which requires no tooling but little post-field-annealing and reducing the amount of waste generated. We have successfully demonstrated the fabrication of near-net shape magnets with complex geometries and high energy product using over 70vol% of NdFeB in nylon polymer composite magnets. A higher energy product of over 18 MGOe have been achieved. We will discuss in detail about thow materials chemistry aspects are used to improve the mechanical, magnetic and thermal stability of printed magnets. |
Wednesday, March 4, 2020 4:18PM - 4:54PM |
P28.00004: Startups: The Place to Be! Invited Speaker: Matt Kim One never knows where the musings of a physicist may lead, since this can contradict the quiet |
Wednesday, March 4, 2020 4:54PM - 5:30PM |
P28.00005: Application of Atomic Layer Deposited Films to Cultural Heritage Objects Invited Speaker: Raymond Phaneuf TBD |
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