Events

SBQMI hosts numerous academic and other events throughout the year. Please search by audience or event type, or enter a keyword, to find events of interest to you.

If you are interested in inviting our faculty as keynote speakers at your event, or are a school group interested in visiting our labs, please contact us to submit your request.

Status of the Search for Majorana Fermions in Semiconductor Nanowires

15 Mar2018

Speaker: Sergey Frolov, University of Pittsburgh

Time: Thu, 2018-03-15 14:00 - 15:00

Location: AMPEL 311

Tunneling spectroscopy measurements on one-dimensional superconducting hybrid materials have revealed signatures of Majorana fermions which are the edge states of a bulk topological superconducting phase. We couple strong spin-orbit semiconductor InSb nanowires to conventional superconductors (NbTiN, Al) to obtain additional signatures of Majorana fermions and to explore the topological phase transition. A potent alternative explanation for many of the...

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  • Seminar
  • Student

Strong disorder Wegner flow and 1d localization transitions

01 Mar2018

Speaker: Gil Refael, Taylor W. Lawrence Professor of Theoretical Physics; Executive Officer for Physics, California Institute of Technology

Time: Thu, 2018-03-01 14:00 - 15:00

Location: AMPEL 311

Localization is one of the most staggering effects of quantum mechanics.The discovery of many-body localization makes the phenomenon even more broad, and suggests that the delocalization transition might give rise to a new paradigm of quantum dynamical phase transitions. In my talk I will explore the use of Wegner flow methods for analyzing the the delocalization transitions in disordered...

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  • Seminar
  • Student

Exploring Novel Quantum States and Manipulating Different Quantum Degrees of Freedom in Two-Dimensional Crystals, Heterostructures and Nano-Metamaterials

15 Feb2018

Speaker: Nai-Chang Yeh, Department of Physics and Kavli Nanoscience Institute California

Time: Thu, 2018-02-15 14:00 - 15:00

Location: AMPEL 311

Recent advances in nanofabrication technology and in the development of two-dimensional (2D) crystals and heterostructures/interfaces of novel materials have enabled new possibilities to explore novel quantum states and manipulate different quantum degrees of freedom (e.g., spin, valley, symmetry, topology, etc.) in materials. For instance, 2D crystals of van der Waals (vdW) materials with honeycomb lattice structures, such as semi-metallic...

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  • Seminar

Entanglement Entropy and Topological Order in Quantum Spin Liquids

08 Feb2018

Speaker: Julia Wildeboer, University of Kentucky

Time: Thu, 2018-02-08 14:00 - 15:00

Location: AMPEL 311

Anderson’s idea of a (short-ranged) resonating valence bond (RVB) spin liquid has been the first ever proposal of what we now call a topologically ordered phase. Since then, a wealth of exactly solvable lattice models has been constructed that have topologically ordered ground states. For a long time, however, it has been difficult to realize Anderson’s original vision, according...

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  • Postdoctoral Fellow
  • Seminar
  • Student

Quantum simulations of dynamical response functions for strongly correlated quasi-one dimensional materials

25 Jan2018

Speaker: Alberto Nocera, Department of Physics and Astronomy, The University of Tennessee

Time: Thursday, 2018-01-25 14:00 - 15:00

Location: Hennings 318

Dynamical response functions of strongly correlated quantum systems provide crucial information about their complex physical behavior. For example, in layered high Tc superconductors, pairing could be linked to the unusual structure of spin excitations with a spin gap at low energies and a magnetic resonance with an universal hourglass dispersion. Angle resolved photoemission spectroscopy represents another invaluable tool, providing...

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Mapping Atomic Motions with Ultrabright Electrons: Realization of the Chemists’ Gedanken Experiment

18 Jan2018

Speaker: Multiple Speakers

Time: Thu, 2018-01-18 14:00 - 15:00

Location: CHEM 126

With the development of ultrabright electron sources capable of literally lighting up atomic motions, the fundamental space-time limit to imaging chemistry has been achieved. The first studies focused on relatively simple systems. Further advances in source brightness have opened up even complex organic systems and solution phase reaction dynamics to atomic inspection. A number of different chemical reactions will...

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  • Seminar

Quantum magnetism on a chip

11 Jan2018

Speaker: Richard G. Harris, Principal Scientist, D-Wave Systems Inc.

Time: Thu, 2018-01-11 14:00 - 15:00

Location: AMPEL 311

Feynman’s original vision for a quantum computer was of a physical quantum system whose Hamiltonian could be adjusted in situ in order to simulate the physics of other quantum systems. Quantum magnetic systems, with localized spins and short range interactions, are perhaps the simplest such physical quantum system that can be implemented in existing solid state technologies. This lecture...

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  • Seminar

Using Resonant Inelastic X-ray Scattering to study quasiparticle fractionalization in quasi-one-dimensional cuprates

05 Jan2018

Speaker: Steve Johnston, University of Tennessee

Time: Fri, 2018-01-05 14:00 - 15:00

Location: AMPEL 311

One-dimensional (1D) magnetic materials have attracted significant interest as a platform for studying phenomena such as quasiparticle fractionalization and quantum criticality. The spin-1/2 1D Heisenberg antiferromagnet is a vital system; its elementary excitations are chargeless spin-1/2 quasiparticles called spinons that are created in pairs. While inelastic neutron scattering (INS) experiments observe the two-spinon continuum regularly, the presence of four-spinon...

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  • Seminar

Ultrafast Quantum Control of Matter

11 Dec2017

Speaker: Multiple Speakers

Time: December 11-15, 2017

Location: Sage East

The goal of this event is to promote real advances in the field of quantum control of matter. In particular, building on the advances in atomic and molecular physics, we will discuss possible new strategies to exploit the light-matter interaction at the quantum level to manipulate the properties of solids and create transient non-equilibrium states with no counterpart at...

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  • Postdoctoral Fellow
  • Public
  • Student
  • Workshop

Electronic properties of strongly correlated materials, and their link to physical properties

04 Dec2017

Speaker: Multiple Speakers

Time: December 4 - 6, 2017

Location: Sage East

This three-day workshop will bring together some of the leading experts in the study of strongly correlated materials and their properties, both from the theoretical and from the experimental side, to survey the status of this field. Presentations discussing various new materials, various experimental techniques and various theoretical and numerical approaches for studying them will be followed by extended,...

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  • Student
  • Workshop

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