CENTER FOR QUANTUM MATERIALS AND CONDENSED MATTER PHYSICS SEMINARS

During Spring 2021, seminars will be posted on this calendar and take place via Zoom. To join the mailing list and get the link, email Jennifer Cano (first name.lastname@stonybrook.edu)

The CQM Distinguished Lecture series has been established in the Fall of 2015 to bring to Stony Brook University the renowned experts in the physics of quantum matter.

The lectures in this series will attract a broad audience of physicists from SBU and BNL,
and SBU graduate students.

March 2020 – February 2021

Sorry — the seminar is cancelled
March 13, 2020 @ 1:30 pm – 2:30 pm
Supersymmetry method for interacting chaotic and disordered systems: the SYK model Abstract: The supersymmetry method was originally developed for studies of quantum phenomena in non-interacting [...]
JOURNAL CLUB: Jennifer Cano (Stony Brook University)
April 10, 2020 @ 10:30 am – 11:30 am
Introduction to Topological Insulators and Semimetals Jennifer Cano (Stony Brook University) I will first review topological insulators following the RMP by Hasan and Kane [1]. I [...]
Igor Zaliznyak (BNL) — ZOOM SEMINAR
April 10, 2020 @ 1:30 pm – 2:30 pm
Title: Negative thermal expansion and entropic elasticity in ScF3 type empty perovskites While most solids expand when heated, some materials show the opposite behavior: negative [...]
We will have three student APS-style talks: 1) Yuan Fang: Higher-order topological insulators in antiperovskites https://arxiv.org/abs/2002.02969 2) Sahal Kaushik: Chiral terahertz wave emission from the Weyl [...]
Qiang Li (Brookhaven National Lab): Light-Driven Raman Coherence as a Nonthermal Route to Ultrafast Topology Switching in a Dirac Semimetal: https://journals.aps.org/prx/pdf/10.1103/PhysRevX.10.021013. BNL/Ames Lab joint PR: https://www.bnl.gov/newsroom/news.php?a=117158 Chris [...]
Yinming Shao: Electronic correlations in nodal-line semimetals https://www.nature.com/articles/s41567-020-0859-z Xu Du will talk about his recent work on QH antidot and on-going work on superlattice potential.
JOURNAL CLUB: Phil Allen (SBU)
May 8, 2020 @ 10:00 am – 11:00 am
Title: Electrons, Phonons, and their interactions Abstract: This talk is NOT a “journal club” discussion of a development in progress.  Instead, it is a tutorial.  To make partial [...]
JOURNAL CLUB: Cyrus Dreyer (SBU)
May 15, 2020 @ 10:00 am – 11:00 am
Title: Flexoelectricity in 2D materials Abstract: Flexoelectricity refers to the generation of electrical polarization in a material with the application of a strain gradient. It is [...]
Dr. Manuel Zingl (Flatiron Institute)
May 22, 2020 @ 1:30 pm – 2:30 pm
Recent theoretical and experimental insights on the normal state properties of Sr2RuO4 The fascinating physics of strongly-correlated materials is often governed by the interplay of several factors of various strength. These are, for [...]
Ken Burch (Boston College)
May 29, 2020 @ 10:00 am – 11:00 am
Probing Nontrivial Topology with Nonlinear Optics and 2D Heterostructures Abstract: A key challenge in condensed matter is measuring the non-trivial topology responsible for novel phases. [...]
JOURNAL CLUB: Matt Dawber (SBU)
June 5, 2020 @ 10:00 am – 11:00 am
Unlocking the secrets of growth and switching in ferroelectric multilayers using synchrotron x-ray diffraction Powerful new capabilities at the NSLS-II synchrotron at Brookhaven National Laboratory [...]
Two talks! 1:30 pm -2:00 pm: Kevin Cremin (postdoc in Richard Averitt’s group at UCSD) “Photo-enhanced metastable c-axis electrodynamics in stripe-ordered cuprate La_{1.885}Ba_{0.115}CuO_4″ The emergence [...]
Jigang Wang (Iowa State and Ames Lab)
June 19, 2020 @ 1:30 pm – 2:30 pm
Quantum Coherence and Dynamics Controlled by Light:  From Higgs Bosons to Chiral Fermions   Jigang Wang Department of Physics & Astronomy and Ames Laboratory-U.S. DOE, Iowa [...]
Liang Jiang (The University of Chicago)
June 26, 2020 @ 1:30 pm – 2:30 pm
Title: Robust Quantum information Processing with Bosonic Modes Abstract: Bosonic modes are widely used for quantum communication and information processing. Recent developments in superconducting circuits enable [...]
Adarsh Ganesan (NIST)
September 11, 2020 @ 1:30 pm – 2:30 pm
Phononic Frequency Combs – A New Addition to Photonics, MEMS, Quantum Information Science, Molecular Science & Material Science Phononic frequency combs (PFC) are the mechanical [...]
Berthold Jäck (Princeton/HKUST) **note the special time**
September 18, 2020 @ 10:00 am – 11:00 am
Observation of a Majorana zero mode in a topologically protected edge state Superconducting pairing in the helical edge state of topological insulators is predicted to [...]
Shubhayu Chatterjee (Berkeley)
September 25, 2020 @ 1:30 pm – 2:30 pm
Superconductivity from skyrmion condensation in magic angle graphene  We propose and analyze a strong-coupling route to superconductivity in twisted bilayer graphene near the magic angle [...]
Dmitry Pikulin (Microsoft Station Q)
October 2, 2020 @ 1:30 pm – 2:30 pm
Three-dimensional flat bands from inhomogeneous nodal-line semimetals In this talk I will discuss the effects of inhomogeneous strain or chemical composition on the nodal line [...]
Gabriel Jose Goulart Cardoso (Stony Brook)
October 9, 2020 @ 1:30 pm – 2:30 pm
The boundary density profile of a Coulomb droplet: Freezing at the edge We revisit the problem of computing the boundary density profile of a droplet [...]
Alexander Wietek (Flatiron Institute)
October 16, 2020 @ 1:30 pm – 2:30 pm
Stripes, Antiferromagnetism, and the Pseudogap in the Doped Hubbard Model at Finite Temperature Host: Cyrus Dreyer The phase diagram of the two-dimensional Hubbard model at [...]
Xie Zhang (UCSB)
October 23, 2020 @ 1:30 pm – 2:30 pm
Unveiling carrier recombination mechanisms in halide perovskites from first-principles calculations Host: Cyrus Dreyer Halide perovskites are highly efficient optoelectronic materials; the power conversion efficiency of [...]
Title: Conical Intersections in Semiconductor Nanocrystals—How is Electronic Energy Converted to Heat? Host: Cyrus Dreyer Non-radiative recombination limits the efficiencies of semiconductor-based optoelectronic devices and photocatalysts [...]
Fahad Mahmood (UIUC)
November 6, 2020 @ 1:30 pm – 2:30 pm
Title: Linear and non-linear THz spectroscopy of collective excitations in correlated materials Host: Cyrus Dreyer In this talk, I will discuss two new aspects of time-domain [...]
Rafael Fernandes (University of Minnesota)
November 13, 2020 @ 1:30 pm – 2:30 pm
Vestigial electronic orders in quantum materials A hallmark of the phase diagrams of quantum materials is the existence of multiple electronic ordered states. In many [...]
Wladimir Benalcazar (Pennsylvania State University)
November 20, 2020 @ 1:30 pm – 2:30 pm
Quantization of fractional corner charge in Cn-symmetric higher-order topological crystalline insulators In the presence of crystalline symmetries, certain topological insulators present a filling anomaly: a mismatch [...]
Mallika Randeria (MIT)
December 4, 2020 @ 1:30 pm – 2:30 pm
Imaging nematic quantum Hall states and their interacting boundary modes  Two-dimensional quantum Hall systems offer a versatile platform for realizing phenomena that can emerge from [...]
Carmen Rubio Verdu (Columbia)
December 11, 2020 @ 1:30 pm – 2:30 pm
Atomic-scale structure and electronic properties of twisted double bilayer graphene: topological edge states and nematic order Atomically thin van der Waals materials stacked with an [...]
Mark Dean (Brookhaven National Lab)
February 12, 2021 @ 1:30 pm – 2:30 pm
X-ray vision of electrons in complex oxides: the case of magnetism in nickelate superconductors Many of the most remarkable properties of quantum materials come from [...]
Sobhit Singh (Rutgers)
February 19, 2021 @ 1:30 pm – 2:30 pm
Title: A proposal for determination of polarity orientation in polar metals Host: Cyrus Dreyer In typical ferroelectrics, which are polar insulators, switching of polarity is immediately [...]