School of Physics Spring Colloquium Series- Dr. Subir Sachdev
Speaker: Dr. Subir Sachdev Host: Zhu-Xi Luo Title: Detecting a quantum spin liquid in the cuprate superconductors Abstract: Soon after the discovery of the cuprate high-temperature superconductors, P. W. Anderson presciently suggested in 1987 that their physics is connected to highly entangled many-body states now known as quantum spin liquids. However, the development of this idea over subsequent decades encountered significant tensions with experimental observations. I address these difficulties using the fractionalized Fermi liquid (FL*) state, proposed in 2002, which describes the doping of a quantum spin liquid with electron-like quasiparticles. Recent angle-dependent magnetoresistance measurements in lightly hole-doped cuprates are consistent with key predictions of the FL* theory. The non-symmetry-breaking quantum phase transition between the FL* state and a conventional Fermi liquid, in the presence of impurities, can be described by a two-spatial-dimensional extension of the Sachdev–Ye–Kitaev (SYK) model. This framework is then applied to the strange-metal regime at intermediate temperatures and dopings. I will also briefly mention how the SYK model has led to recent progress in understanding the density of quantum states of charged black holes. Bio: Subir Sachdev is Herchel Smith Professor of Physics at Harvard University. He has been elected to national academies of science in India and the US, and the Royal Society in the U.K. He is a recipient of several awards, including the Dirac Medal from the International Centre for Theoretical Physics, and the Lars Onsager Prize from the American Physical Society. Sachdev has made extensive contributions to the theory of the diverse varieties of states of quantum matter, and of their behavior near quantum phase transitions.
School of Physics Spring Colloquium Series- Dr. Subir Sachdev
Dr. Subir Sachdev(Harvard) Many-fermion quantum entanglement in the cuprate superconductors.
School of Physics Spring Colloquium Series- Dr. Andrea Young
Dr. Andrea Young(UCSB) Superconductivity and magnetism in crystalline graphite allotropes
School of Physics Spring Colloquium Series - Dr. Marco Ajello
You can teach an old dog new tricks: 17 years of Fermi observations of the gamma-ray sky
School of Physics Spring Colloquium Series- Dr. Marco Ajello
Dr. Marco Ajello(Clemson) You can teach an old dog new tricks: 17 years of Fermi observations of the gamma-ray sky
School of Physics Fall Colloquium Series- Dr. Michael J. Manfra
Michael J. Manfra(Purdue) Quantum Mechanics, Identical Particles, and the Strange Case of Anyons…
School of Physics Fall Colloquium Series- Dr. James Aguirre
James Aguirre(UPenn) Bridging Astrophysics and Cosmology with Line Intensity Mapping
School of Physics Fall Colloquium Series- Dr. J M Stone
J M Stone(IAS) Modeling Luminous Black Hole Accretion Flows
School of Physics Fall Colloquium Series- Dr. Pedram Roushan
Pedram Roushan(Google) Novel quantum dynamics with superconducting qubits
School of Physics Fall Colloquium Series-Dr. Qimiao Si
Qimiao Si (Rice University) Quantum phases driven by strong correlations and topology
School of Physics Fall Colloquium Series- Dr. Nikta Fakhri
Nikta Fakhri(MIT) Broken Symmetries in Living Matter
School of Physics Fall Colloquium Series- Dr. Adam Riess
Adam Riess(JHU) What JWST Reveals about the Hubble Tension
School of Physics Fall Colloquium Series- Dr. Jose Onuchic
Jose Onuchic(Rice Univ.) Modeling the Genome: A View by a Physicist
School of Physics Fall Colloquium Series- Dr. Peter Winter
Peter Winter(Argonne National Lab)
Canceled: School of Physics Fall Colloquium Series- Dr. Stephanie Palmer
Stephanie Palmer(Univ. of Chicago) How biological circuits decide what to throw away
School of Physics Spring Colloquium Series-Dr. Lia Medeiros
Lia Medeiros(Univ. of Wisconsin Milwaukee) EHT images of black holes: what we've learned from them and how we can improve them
School of Physics Spring Colloquium Series-Dr. Aleksei Aksimentiev
Aleksei Aksimentiev(Univ. of Illinois) Seeing the unseen using supercomputers
School of Physics Spring Colloquium Series-Dr. Peter Abbamonte
Peter Abbamonte(Univ. of Illinois) Quantum criticality in strange metals
School of Physics Spring Colloquium Series-Dr. Tim Kovachy
Tim Kovachy(Northwestern) New Tools for Dark Matter and Gravitational Wave Detection: Long-Baseline Atom Interferometers and Cryogenic Comparisons of Optical Resonators
School of Physics Spring Colloquium Series-Dr. Vanderlei Bagnato
Vanderlei Bagnato(Texas A&M) Observation of Relaxation Stages in a Nonequilibrium Closed Quantum System
School of Physics Faculty Search Colloquium Series- Dr. Aishik Ghosh
Aishik Ghosh(UCI)Probing High-Dimensional Spaces: From Theory Design to Parameter Inference in Particle and Astrophysics
School of Physics Faculty Search Colloquium Series- Dr. Alec Linot
Alec Linot(UC) Low-dimensional models and stability analysis for controlling unsteady fluid flows
School of Physics Faculty Search Colloquium Series- Dr. Lauren Yates
Lauren Yates(FNAL) Elucidating the Mysteries of Neutrinos with Liquid Argon Detectors at Fermilab
School of Physics Faculty Search Colloquium Series- Dr. Jacob Zettlemoyer
Jacob Zettlemoyer(Indiana University) Discovering New Particles with Neutrino Detectors using Accelerator Facilities at Fermilab
School of Physics Faculty Search Colloquium Series- Dr. Afroditi Papadopoulou
Afroditi Papadopoulou(ANL) Lepton-Nucleus Scattering Measurements for Neutrino Interactions and Oscillations
School of Physics Colloquium
Dr. Afroditi Papadopoulou; Lepton-Nucleus Scattering Measurements for Neutrino Interactions and Oscillations
