Hamilton Colloquium Series - Emilia Morosan, Rice University: "Exotic superconductivity at the itinerant-to-local moment crossover" Thu, Dec 5, 2013, 4:30 pm – 5:30 pm The conventional wisdom that magnetism and superconductivity are immiscible has been losing ground for more than 25 years, in favor of the concept of magnetism-mediated superconductivity. Not only are magnetic interactions required for electron pairing in the famous Cu oxides and the Fe pnictides, but they seem to be the key ingredient for high… Hamilton Colloquium Series - Joseph Polchinski, KITP, University of California-Santa Barbara: "The Black Hole Information Paradox: Alive and Kicking" Thu, Nov 21, 2013, 4:30 pm – 5:30 pm Thought experiments have played an important role in figuring out the laws of physics. For the unification of quantum mechanics and gravity, where the phenomena take place in extreme regimes, they are even more crucial. Hawking's 1976 paper "Breakdown of Predictability in Gravitational Collapse" presented one of the great thought experiments in… Hamilton Colloquium Series - Cristiano Galbiati, Princeton University: "What about dark matter?" Thu, Nov 14, 2013, 4:30 pm – 5:30 pm I will discuss the status of direct dark matter searches and the prospects for the DarkSide program. Hamilton Colloquium Series - Sarah Eno, University of Maryland: "The LHC: Beyond the Standard Model" Thu, Nov 7, 2013, 4:30 pm – 5:30 pm The Higgs was postulated, during the 1970s, to be the source of electroweak symmetry breaking in the standard model. For my entire professional career, the search for the Higgs boson has been the highest priority goal for the field of experimental high energy physics. The Large Hadron Collider was designed with its discovery in mind, and the… Hamilton Colloquium Series - Shiraz Minwalla, Tata Institute of Fundamental Research - Mumbai, India: "The Fluid Gravity Correspondence" Thu, Oct 24, 2013, 4:30 pm – 5:30 pm I will demonstrate that a class of solutions to Einstein’s equations with a negative cosmological constant in $d+1$ dimensions are in one-to-one correspondence with solutions of the equations of hydrodynamics (relativistic generalizations of the Navier Stokes equations) in $d$ dimensions. This construction relates the classic area increase… Hamilton Colloquium Series - Risa Wechsler, Kavli Institute, Stanford University: "Dark Matter Insights from Cosmological Structure Formation" Thu, Oct 17, 2013, 4:30 pm – 5:30 pm There is now overwhelming evidence that more than eighty percent of the mass in the Universe is dark matter. This provides a clear indication for the existence of a particle or particles beyond the standard model, but we have yet to determine the nature of this particle. Models of dark matter make specific predictions for the formation of… Hamilton Colloquium Series - Will Happer, Princeton University: "Why Has There Been No Global Warming For The Past Decade?" Thu, Oct 10, 2013, 4:30 pm – 5:30 pm The temperature of the Earth's surface has not changed by more than 0.1 C since the year 2000, and it may even have cooled slightly. Most computer models predicted that the increase of CO2, from about 370 to 400 ppm during that period, should have caused a warming of around 0.3 C. There are many possible reasons for the failure of the models, but… Hamilton Colloquium Series - Andrei Bernevig, Princeton University: "Topological States of Matter" Thu, Sep 26, 2013, 4:30 pm – 5:30 pm Topological states of matter distinguish themselves from quantum ordered states - such as antiferromagnets - by the absence of a local order parameter. Their properties are remarkable, and range from realizing Majorana fermions to exhibiting fractional statistics and non-abelian braiding. Important for practical applications, topological states… Hamilton Colloquium Series - Dr. Justin Kasper, University of Michigan; Smithsonian Astrophysical Observatory: "Sending a spacecraft to the Sun" Thu, Sep 19, 2013, 4:30 pm – 5:30 pm For centuries solar eclipses have provided brief glimpses of the solar corona, a remarkably structured atmosphere that surrounds the Sun and spreads into the solar system. Today, the Sun and the corona are tracked continuously by observatories on Earth and in space. We know much more about solar activity and the impact space weather can have… Hamilton Colloquium Series - Eliot Quataert, University of California-Berkeley - "The Physics of Galaxy Cluster Plasmas" Thu, May 2, 2013, 4:30 pm – 5:30 pm Galaxy clusters are among the largest gravitationally bound objects in the universe. The majority of the baryonic mass in clusters resides in a hot, low density plasma that pervades the intracluster medium (rather than in stars). The heating and cooling processes in this plasma must be understood in order to make progress on a number of key… Hamilton Colloquium Series - Frank Jenko, Max-Planck-Institut für Plasmaphysik - "Exploring the Mysteries of Plasma Turbulence" Thu, Apr 11, 2013, 4:30 pm – 5:30 pm Plasma turbulence is a ubiquitous phenomenon, influencing the dynamics in most of the visible universe and playing a crucial role in countless experiments of basic and applied plasma science. Its comprehension and control is a prerequisite to the realization of fusion energy. At the same time, it constitutes a fascinating example of… Hamilton Colloquium Series - Amir Yacoby, Harvard University - “Quantum Information Processing and Metrology Using Few Electron Spins in Solids” Thu, Apr 4, 2013, 4:30 pm – 5:30 pm Quantum computing and information processing use quantum two level systems as their building blocks. Solid-state implementations of quantum bits use, for example, single or few electron spins confined to small spatial dimensions. Harnessing the interaction of such electron spins with their environment offers intriguing possibilities for coherent… Hamilton Colloquium Series - Alain Aspect, Institut d'Optique, Palaiseau - "From Einstein's intuition to quantum bits: a new quantum age?" Thu, Mar 28, 2013, 4:30 pm – 5:30 pm In 1935, with co-authors Podolsky and Rosen, Einstein discovered a weird quantum situation, where particles in a pair are so strongly correlated that Schrödinger called them “entangled.” By analyzing that situation, Einstein concluded that the quantum formalism was incomplete. Niels Bohr immediately opposed that conclusion, and the debate… Hamilton Colloquium Series - William Young, Scripps Institution of Oceanography, UC, San Diego - "Two Dimensional Turbulence" Thu, Mar 14, 2013, 4:30 pm – 5:30 pm In the first part of this talk I will review basic results about two-dimensional turbulence emphasizing the absence of a dissipative anomaly in D=2, and the energy-conserving long-time behavior of solutions of the inviscid equations of motion. Arguments dating back to Onsager predict the formation of an en-semble of vortices separated by… Hamilton Colloquium Series - Ignacio Cirac, Max-Planck Institute for Quantum Optics - "Dissipation as a New Tool in Quantum Information Science" Thu, Mar 7, 2013, 4:30 pm – 5:30 pm Quantum entanglement, the most striking feature of quantum mechanics, is also the basic ingredient in most applications in the field of quantum information. Unfortunately, it is very fragile: in all experiments so far the coupling of the systems to the environment has lead to dissipation which either destroys entanglement or prevents its… Hamilton Colloquium Series - Abhay Pasupathy, Columbia University, "What drives electronic nematicity in the iron-based superconductors?" Thu, Feb 28, 2013, 4:30 pm – 5:30 pm The iron arsenides are a recently discovered class of unconventional superconducting materials. This class of materials consists of various families (cryptically called 111, 122, 1111, etc.) each of which has a "parent" compound. These parent compounds (e.g. NaFeAs) are typically not superconducting, but display a spin-density wave phase at low… Hamilton Colloquium Series - Roderich Moessner, Max Planck Institute for the Physics of Complex Systems, Dresden - "Magnetic Monopoles in Spin Ice" Thu, Feb 21, 2013, 4:30 pm – 5:30 pm Magnetic monopoles were first proposed to exist by Dirac many decades ago as the natural counterparts of electrically charged particles such as the electron. Despite much searching, no elementary monopoles have ever been observed, even though many theories of high-energy physics suggest that they should be present. Here, we present an alternative… Hamilton Colloquium Series - Duncan Haldane, Princeton University - "The Entanglement Spectrum: A new tool for studying quantum states of matter" Thu, Feb 14, 2013, 4:30 pm – 5:30 pm Until recently, the von Neumann entropy and its generalizations (Renyi) were the principal quantitative characterizations of entanglement. A richer characterization, first developed here at Princeton, is becoming the tool of choice for investigating topological (and conventional) order in quantum ground states of condensed matter systems. A… Hamilton Colloquium Series- Clare Yu, Univ. of California - "A Condensed Matter Physicist Looks at Cancer, Tumor Location, and Tumor Microenvironment" Thu, Feb 7, 2013, 4:30 pm – 5:30 pm We will discuss what physics can bring to cancer biology, and the types of questions that physicists can ask such as "Why does a tumor grow where it does?" and "How does the microenvironment of a tumor affect its growth?" Cancer cells do not act alone. They get their cues from the their environment which consists of the extracellular matrix… By Year 2024 (1)2023 (15)2022 (11)2021 (3)2020 (8)2019 (17)2018 (20)2017 (16)2016 (20)2015 (16)2014 (17)2013 (19)(selected)2012 (20)2011 (16)2010 (9) By Category Astroparticle SeminarAtomic Physics SeminarBiophysics SeminarCondensed Matter SeminarDark Cosmo SeminarDistinguished Lecture SeriesDonald R. Hamilton ColloquiumDonald R. Hamilton LectureEquity Diversity and Inclusion InitiativeFPOGravity Group SeminarGravity Initiative SeminarHigh Energy Experiment SeminarHigh Energy Theory SeminarMathematical Physics SeminarParticle Physics SeminarPCTS SeminarPhenomenology SeminarPrinceton Quantum ColloquiumQuantum InitiativeSpecial EventSpecial SeminarStatistical Mechanics Seminar
