Events Archive

Special Seminar, Anthony Sigillito, Princeton University, "Electric field control of electronic and nuclear spin qubits in silicon"
Fri, Dec 16, 2016, 12:00 pm1:00 pm
Donor electronic and nuclear spins in silicon form two-level systems with coherence times exceeding seconds, making them promising qubits for quantum computing applications. These spins are typically manipulated using microwave magnetic fields. However, magnetic fields are difficult to confine at the nanoscale, which poses problems when moving…
Special Seminar | Monika Scholz, UChicago | "To eat or not to eat: Feeding in noisy conditions"
Wed, Dec 14, 2016, 1:00 pm2:00 pm
Animals generally forage on inhomogeneous landscapes, where nutritional content varies in space and time. Therefore they need to assess the benefit of immediate intake versus waiting for better times. The process of feeding itself incurs an energetic cost in most animals, which poses a cost-benefit question: is the environment nutrient rich…
Special Seminar, Johanna Nagy "Probing Inflation with SPIDER, a Balloon-Borne CMB Polarimeter"
Wed, Dec 14, 2016, 11:00 am12:00 pm
TITLE Probing Inflation with SPIDER, a Balloon-Borne CMB Polarimeter ABSTRACT The generation of a stochastic gravitational wave background is a key prediction of cosmological theories of inflation. At large angular scales, these gravitational waves would imprint a "B-mode" polarization pattern in the Cosmic Microwave Background, providing a…
Special HET Seminar | Mario Martone, Cornell University | “Understanding the Landscape of N=2 Super-conformal Field Theories”
Thu, Dec 8, 2016, 1:45 pm2:45 pm
In this talk I will argue that a systematic classification of 4d N=2 superconformal field theories is possible through a careful analysis of the geometry of their Coulomb branches. I will carefully describe this general framework and then carry out the classification explicitly in the rank-1, that is one complex dimensional Coulomb branch, case…
Special Seminar: Pietro Giampa/Queen's Univ. "Searching for Dark Matter with the DEAP-3600 Experiment"
Thu, Dec 8, 2016, 1:30 pm2:30 pm
Abstract: DEAP-3600 is a single phase liquid argon (LAr) dark matter experiment, located 2 km underground at SNOLAB, in Sudbury, Ontario. The detector has 1 tonne fiducial mass of LAr. The target sensitivity to spin-independent scattering of 100 GeV WIMPs is 10^{−46} cm^{2}. The DEAP-3600 background target is
Special Seminar, Jacob Covey, Colorado, "A quantum gas of polar KRb molecules in an optical lattice"
Wed, Dec 7, 2016, 1:30 pm2:30 pm
Ultracold polar molecules allow for investigation of quantum-state-controlled chemistry as well as strongly correlated many-body dynamics. After the first realization of polar molecules in the quantum regime, chemical reactions immediately became apparent in our KRb system. Upon obtaining a detailed understanding of the chemical reaction…
Special Seminar: "Neutrinos are Everywhere: Towards a New Understanding of the Quantum Universe" Nigel S. Lockyer, Director Fermi National Laboratory
Fri, Jun 17, 2016, 4:30 pmMon, Jun 13, 2016, 6:00 pm
Fermilab has entered an exciting new phase, in which an international collaboration is designing and building the world’s most powerful source of neutrinos on the Fermilab site. The neutrinos will be shot through the earth to the Homestake mine in South Dakota, where DUNE, a giant detector based on 40,000 tons of instrumented liquid argon 4700…
Special Seminar: "Neutrinos are Everywhere: Towards a New Understanding of the Quantum Universe" Nigel S. Lockyer, Director Fermi National Laboratory
Fri, Jun 17, 2016, 4:30 pm5:30 pm
June 17 Jadwin Hall, Room A-10 Princeton University Department of Physics ~ Special Colloquium “Neutrinos are Everywhere: Towards a New Understanding of the Quantum Universe ” Speaker: Nigel S. Lockyer, Director Fermi National Laboratory Fermilab has entered an exciting new phase, in which an international collaboration is designing and…
Kirk McDonald Retirement - Special Seminars
Fri, Jun 17, 2016, 10:00 am5:30 pm
10:30 - Welcome and Introduction - Stew Smith 10:50 - "Lepton pairs from hadrons - then and now", Jim Pilcher, Enrico Fermi Institute 11:30 - "Physics with Pairs of Particles:Muons, Pions, Photons", Cristina Biino, University of Torino 12:10 - Break 2:00 - "Drell-Yan Studies in the 80's, and Muon Pairs Today", Sandro Palestini, CERN 2:40 …
Special Seminar: Pedram Roushan, Google: "Chiral ground-state currents of interacting photons in a synthetic magnetic field”
Thu, Jun 16, 2016, 1:30 pm2:30 pm
The intriguing many-body phases of quantum matter arise from the interplay of particle interactions, spatial symmetries, and external fields. Generating these phases in an engineered system could provide deeper insight into their nature and the potential for harnessing their unique properties. However, concurrently bringing together the main…
Neutrino Seminar - Diana Parno, U. of Washington, "Unmasking the Neutrino: The Standard Model and Beyond"
Thu, Apr 28, 2016, 2:00 pm3:00 pm
When nonzero neutrino mass was definitively established some fifteen years ago, these neutral, spin-1/2 elementary particles gave us the first hard evidence of beyond-the-Standard-Model physics in the electroweak sector. Today, many fundamental questions about neutrinos remain. In this talk, I will discuss two exciting projects, COHERENT and…
Seminar - Claudia Felser, Max Planck (Dresden), “Heusler compounds: Tunable materials with non-trivial topologies”
Mon, Apr 11, 2016, 4:30 pm5:30 pm
Event Location: Taylor Auditorium, Frick Chemistry Laboratory Heusler compounds are a remarkable class of materials with more than 1,000 members and a wide range of extraordinary multifunctionalities [1] including tunable topological insulators (TI) [2]. The tunabilty of this class of materials is exceptional and nearly every functionality…
Special seminar - Stuart Parkin, Max Planck Institute (Halle), “Domain Wall Spin-Orbitronics: Rise of Racetrack Memory!”
Mon, Apr 11, 2016, 1:15 pm2:15 pm
Memory-storage devices based on the current controlled motion of a series of domain walls (DWs) in magnetic racetracks promise performance and reliability beyond that of conventional magnetic disk drives and solid state storage devices(1). Racetracks that are formed from atomically thin, perpendicularly magnetized nano-wires, interfaced with…
Revealing Hidden Orders in Spin-Orbit Coupled Correlated Materials - Liuyan Zhao, Caltech
Thu, Feb 4, 2016, 3:00 pmWed, Jan 20, 2016, 4:00 pm
Recently, there has been growing interest in electronic systems that exhibit both strong spin-orbit coupling and strong electron correlations. These systems combine two central threads of modern quantum materials research: correlated electron physics that underlies phenomena such as high-Tc superconductivity, and spin-orbit physics that describes…
Revealing Hidden Orders in Spin-Orbit Coupled Correlated Materials - Liuyan Zhao, Caltech
Thu, Feb 4, 2016, 3:00 pm4:00 pm
Recently, there has been growing interest in electronic systems that exhibit both strong spin-orbit coupling and strong electron correlations. These systems combine two central threads of modern quantum materials research: correlated electron physics that underlies phenomena such as high-Tc superconductivity, and spin-orbit physics that describes…
Search, discovery and measurements of the Higgs boson in the diphoton decay channel at CMS- Josh Bendavid, CERN
Thu, Feb 4, 2016, 1:30 pm2:30 pm
The observation of a new particle with properties consistent with a Standard Model Higgs boson by the ATLAS and CMS collaborations in 2012 marked a major achievement in particle physics, fulfilling a major goal of the LHC program. Continuing measurements of the properties of the new boson constitute stringent tests of the Standard Model in…
Top quarks & beyond: probing new physics at the Large Hadron Collider- Louise Skinnari, CERN
Tue, Feb 2, 2016, 2:00 pm3:00 pm
Abstract: The first run of the Large Hadron Collider has been a great success, most notably with the discovery of the Higgs boson. Despite the continued triumph of the Standard Model, important questions about how nature works on small scales remain unanswered. Top quarks play a central role in many extensions to the Standard Model proposed to…
Ultracold Quantum Matter of Strongly Dipolar Molecules - Sebastian Will, MIT
Thu, Jan 28, 2016, 1:00 pm2:00 pm
Over the past decade, atomic quantum gases have successfully been employed as quantum simulators for strongly correlated many-body systems. However, the interactions between ultracold atoms typically have short-range character, limiting the spectrum of quantum phenomena to be explored. Ultracold molecules with long-range dipolar interactions will…
Tailoring the flow of light at the nanoscale with hyperbolic metasurfaces - Alex High, Harvard University
Wed, Jan 27, 2016, 1:00 pm2:00 pm
Metamaterials, artificial optical media composed of sub-wavelength metallic and dielectric building blocks, can significantly enhance our ability to tailor the flow of light at nanoscale dimensions. However, three-dimensional (3D) metamaterials suffer from extreme propagation losses, limiting their practical utility. Two-dimensional (2D)…
A Light Dark Side - Yonit Hochberg, Berkeley
Mon, Jan 25, 2016, 3:00 pm4:00 pm
The exploration of dark matter beyond the WIMP is of vital importance towards resolving the identity of dark matter. Focusing on light dark matter, I will demonstrate this from two perspectives. From the theory side, I will present a new candidate for thermal dark matter in the form of Strongly Interacting Massive Particles (SIMPs). The freezeout…