Physics Events

  • Thursday, September 12, 2019
    Hamilton Colloquium Series
    “TBA”

    Location: Jadwin Hall, Room A10
    Time: 4:00 PM
    Speaker(s): Silviu Pufu, Princeton University
    Note: A free lecture open to the public.

    Description:  

  • Monday, September 16, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Bloomberg Lecture Hall
    Time: 2:30 PM
    Speaker(s): Amit Sever, CERN

    Description:  

  • Tuesday, September 17, 2019
    Physics Seminar
    “A Look at Hadronization via High Multiplicity”

    Location: Jadwin Hall, Room 303
    Time: 2:00 PM
    Speaker(s): Elena Kokoulina, JINR-Dubna

    Description: Multiparticle production is studied experimentally and theoretically in QCD that describes interactions in the language of quarks and gluons. In the experiment the real hadrons are registered. For transfer from quarks and gluons to observed hadrons various phenomenological models are used.

    In order to describe the high multiplicity region, we offer a gluon dominance model (GDM). It represents a convolution of two stages. First stage is described as a part of QCD. For second one (hadronisation), the phenomenological model is used. To describe hadronisation, a scheme has been proposed, consistent with experimental data in the region of its dominance. Comparison of this model with data on $e^+e^-$ annihilation over a wide energy interval (up to 200 GeV) confirms the fragmentation mechanism of hadronisation, the development of the quark-gluon cascade with energy increase with a domination of bremsstrahlung gluons.

    The description of topological cross sections in $pp$ collisions within of GDM testifies that in hadron collisions the mechanism of hadronisation is being replaced by  the recombination one. At that point, gluons play an active role in the multiparticle production process, and valence quarks are passive. They stay in the leading particles, and only the gluon splitting is responsible for the region of high multiplicity.

    GDM with inclusion of intermediate quark charged  topologies describes topological cross sections in a proton-antiptoton annihilation and explains linear growth of a secondary correlative momentum in the negative area.

    The scaled variance of a neutral pion number mesuared by us is rising abruptly in the region of high total multiplicity and differs from Monte Carlo predictions by seven standard deviations. The growth of fluctuations of the neutral pion number in this region may indicate the formation of a pion (Bose-Einstein) condensate. Despite the growth of fluctuations on the neutral number, their average remains equal to 1/3 of the total pion number.

  • Thursday, September 19, 2019
    Hamilton Colloquium Series
    “The Quantum Black Hole: How Exotic Physics May Enter”

    Location: Jadwin Hall, Room A10
    Time: 4:00 PM
    Speaker(s): Gerard 't Hooft, Utrecht University
    Note: A free lecture open to the public.

    Description: Quantising a black hole can be done starting with conventional physics. We just assume matter to keep the form of point particles until they come close to the horizon. The gravitational back reaction of these particles generates a novel relation between particles going in and particles going out, enabling us to transform in-going particles into out-going ones. This transformation removes firewalls along the future and past horizons, but it strongly affects space-time inside a black hole. It subsequently allows us, and indeed forces us, to identify antipodal points on the horizon. We argue that this exotic modification of the boundary condition is the only way to restore unitarity for the quantum evolution operator, and to identify the black hole microstates. Some mysteries, however, remain unresolved.

  • Friday, September 20, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Jadwin Hall, PCTS Seminar Room, 4th Floor
    Time: 1:45 PM
    Speaker(s): Christian Jepsen, Princeton University

    Description:  

  • Monday, September 23, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Jadwin Hall, PCTS Seminar Room, 4th Floor
    Time: 2:30 PM
    Speaker(s): Bernardo Zan, Princeton University

    Description:  

  • Tuesday, September 24, 2019
    Pheno & Vino Seminar
    “TBA”

    Location: Jadwin Hall, Room 303
    Time: 4:00 PM
    Speaker(s): Yushin Tsai, University of Maryland

    Description:  

  • Tuesday, September 24, 2019
    Forefronts of Gravitational Physics
    “Gravitational Wave Detection, Past & Future”

    Location: McDonnell Hall A-02
    Time: 7:00 PM
    Note: A free lecture open to the public.

    Description: Beverly Berger, Stanford
    "The dawn of gravitational-wave astronomy - a new window on the universe"

    Karsten Danzmann, Max Planck Institute for Gravitational Physics
    "Listening to the Universe: The future of gravitational wave astronomy"

     

    Introduction by Joe Taylor

  • Wednesday, September 25, 2019
    Second Annual Simons Fall Workshop
    “Forefronts of Gravitational Physics”

    Location: PCTS | Jadwin Hall 4th Floor | Seminar Room 407
    Time: 8:30 AM
    Note: Register here: https://docs.google.com/forms/d/e/1FAIpQLSfLi7dsyUDiSsZq5JyTm3jSKjZ-gsHQujiwMOe2vpvzOk3eOQ/viewform

    Description: This is a satellite event in association with the annual `Origins of the Universe' conference that takes place Sept 26-27, 2019 at the Simons Foundation in New York City's Flatiron District. 
    Confirmed Speakers:

     
    http://www.physics.princeton.edu/~cosmo/bouncingcosmology/workshops.html

  • Thursday, September 26, 2019
    Hamilton Colloquium Series
    “Supernova Explosion Simulations in Three Dimensions”

    Location: Jadwin Hall, Room A10
    Time: 4:00 PM
    Speaker(s): Adam Burrows, Princeton University
    Note: A free lecture open to the public.

    Description: Using our state-of-the-art code Fornax we have simulated the collapse and explosion of the cores of many massive-star models in three spatial dimensions. This is the most comprehensive set of realistic 3D core-collapse supernova simulations yet performed and has provided very important insights into the mechanism and character of this 50-year-old astrophysical puzzle. I will present detailed results from this suite of runs and the novel conclusions derived from our new capacity to simulate many 3D, as opposed to 2D and 1D, full physics models every year. This new capability, enabled by this new algorithm and modern HPC assets, is poised to transform our understanding of this central astrophysical puzzle.

  • Friday, September 27, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Bloomberg Lecture Hall
    Time: 1:45 PM
    Speaker(s): TBA

    Description:  

  • Monday, September 30, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Bloomberg Lecture Hall
    Time: 2:30 PM
    Speaker(s): Andrew Turner, Massachusetts Institute of Technology

    Description:  

  • Tuesday, October 1, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Jadwin Hall, PCTS Seminar Room, 4th Floor
    Time: 2:00 PM
    Speaker(s): Mikhail Khramtsov, Steklov Institute

    Description:  

  • Tuesday, October 1, 2019
    Pheno & Vino Seminar
    “Looking for Axion Dark Matter: From Dwarf Galaxies to Pulsars”

    Location: Jadwin Hall, Room 303
    Time: 4:00 PM
    Speaker(s): Andrea Caputo, Valencia University

    Description: Axion and Axion-like particles are fascinating dark matter candidates and a great effort has been devoted to their study, both theoretically and experimentally. In this talk I will discuss two different astrophysical searches. The first one consists in looking with radio telescopes for the spontaneous decay of axion dark matter using different targets as Dwarf Galaxies, Clusters or the Galactic Center. The second one uses the parity violating axion interactions to exploit the extreme precision of pulsar timing measurements and look for oscillations in the polarization angle of the pulsar signal.

  • Friday, October 4, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Bloomberg Lecture Hall
    Time: 1:45 PM
    Speaker(s): TBA

    Description:  

  • Monday, October 7, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Jadwin Hall, PCTS Seminar Room, 4th Floor
    Time: 2:30 PM
    Speaker(s): Avia Raviv, Tel-Aviv University

    Description:  

  • Tuesday, October 8, 2019
    Pheno & Vino Seminar
    “TBA”

    Location: Jadwin Hall, Room 303
    Time: 4:00 PM
    Speaker(s): Sungwoo Hong, Cornell University

  • Friday, October 11, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Jadwin Hall, PCTS Seminar Room, 4th Floor
    Time: 1:45 PM
    Speaker(s): Zimo Sun, Columbia University

    Description:  

  • Monday, October 14, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Bloomberg Lecture Hall
    Time: 2:30 PM
    Speaker(s): Geoff Penington, Stanford University

    Description:  

  • Tuesday, October 15, 2019
    Pheno & Vino Seminar
    “Early-Universe Simulations of the Cosmological Axion”

    Location: Jadwin Hall, Room 303
    Time: 4:00 PM
    Speaker(s): Malte Buschmann, University of Michigan

    Description: We perform high resolution simulations in a scenario where the Peccei-Quinn (PQ) symmetry is broken after inflation starting at the epoch before the PQ phase transition and ending at matter-radiation equality. We characterize the spectrum of primordial perturbations that are generated and comment on implications for efforts to detect axion dark matter (DM). We also measure the DM density at different simulated masses and argue that the correct DM density is obtained for an axion mass of 25.2 11.0 eV.

  • Friday, October 18, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Jadwin Hall, PCTS Seminar Room, 4th Floor
    Time: 1:45 PM
    Speaker(s): Sabrina Gonzalez Pasterski, Princeton University

    Description:  

  • Monday, October 21, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Jadwin Hall, PCTS Seminar Room, 4th Floor
    Time: 2:30 PM
    Speaker(s): Bruno Balthazar, Harvard University

    Description:  

  • Tuesday, October 22, 2019
    Pheno & Vino Seminar
    “TBA”

    Location: Jadwin Hall, Room 303
    Time: 4:00 PM
    Speaker(s): Marat Freytsis, Rutgers University

  • Friday, October 25, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Bloomberg Hall Physics Library
    Time: 1:45 PM
    Speaker(s): TBA

    Description:  

  • Monday, October 28, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Bloomberg Lecture Hall
    Time: 2:30 PM
    Speaker(s): Tom Hartman, Cornell University

    Description:  

  • Friday, November 1, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Bloomberg Lecture Hall
    Time: 1:45 PM
    Speaker(s): TBA

    Description:  

  • Monday, November 4, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Jadwin Hall, PCTS Seminar Room, 4th Floor
    Time: 2:30 PM
    Speaker(s): Jacobus Verbaarschot, Stony Brook University

    Description:  

  • Tuesday, November 5, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Jadwin Hall, PCTS Seminar Room, 4th Floor
    Time: 2:00 PM
    Speaker(s): Callum Jones, University of Michigan

    Description:  

  • Thursday, November 7, 2019
    The Gravity Initiative Opening Celebration

    Location: Jadwin Hall, 4th Floor
    Time: 8:30 AM

    Description: Speakers:
    • Claudio Bunster
    • Shep Doeleman
    • Robbert Dygraaf
    • Wendy Freedman
    • Gabriela Gonzalez
    • Ted Jacobson
    • Nergis Mavalvala
    • Rob Myers
    • Malcolm Perry
    • Andrew Strominger
    • Neil Turok
    • Bill Unruh


  • Thursday, November 7, 2019
    The Gravity Initiative Opening Celebration - Public Lecture

    Location: McDonnell Hall, Room A02
    Time: 8:00 PM
    Speaker(s): Robbert Dijkgraaf, Director, Institute for Advanced Study
    Note: A free lecture open to the public.

  • Friday, November 8, 2019
    The Gravity Initiative Opening Celebration

    Location: Jadwin Hall, 4th Floor
    Time: 8:30 AM

    Description: Speakers:
    • Claudio Bunster
    • Shep Doeleman
    • Robbert Dygraaf
    • Wendy Freedman
    • Gabriela Gonzalez
    • Ted Jacobson
    • Nergis Mavalvala
    • Rob Myers
    • Malcolm Perry
    • Andrew Strominger
    • Neil Turok
    • Bill Unruh


  • Monday, November 11, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Jadwin Hall, PCTS Seminar Room, 4th Floor
    Time: 2:30 PM
    Speaker(s): Joao Penedones, École polytechnique fédérale de Lausanne

    Description:  

  • Monday, November 11, 2019
    Pheno & Vino Seminar
    “TBA”

    Location: Jadwin Hall, Room 303
    Time: 4:00 PM
    Speaker(s): Jessie Shelton, University of Ilinois

  • Friday, November 15, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Bloomberg Lecture Hall
    Time: 1:45 PM
    Speaker(s): TBA

    Description:  

  • Monday, November 18, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Bloomberg Lecture Hall
    Time: 2:30 PM
    Speaker(s): Theo Johnson-Freyd, Perimeter Institute

    Description:  

  • Friday, November 22, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Jadwin Hall, PCTS Seminar Room, 4th Floor
    Time: 1:45 PM
    Speaker(s): Julian Sonner, University of Geneva

    Description:  

  • Monday, November 25, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Bloomberg Lecture Hall
    Time: 2:30 PM
    Speaker(s): Radu Roiban, Pennsylvania State University

    Description:  

  • Tuesday, November 26, 2019
    Pheno & Vino Seminar
    “TBA”

    Location: Jadwin Hall, Room 303
    Time: 4:00 PM
    Speaker(s): Jo Dunkley, Princeton University

  • Monday, December 2, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Bloomberg Lecture Hall
    Time: 2:30 PM
    Speaker(s): TBA

    Description:  

  • Tuesday, December 3, 2019
    It from Qubit Conference
    “Workshop on Qubits and Spacetime”

    Location: Wolfensohn Hall
    Time: 6:00 AM

    Description: Please Note: This workshop is not open to the general public, but only to active researchers.

    This workshop will focus on quantum aspects of black holes, focusing on applying ideas from quantum information theory.

    This meeting is sponsored by the "It from Qubit"collaboration and is followed by the collaboration meeting in New York City.
    https://www.sns.ias.edu/quantum-information-workshop-2019

  • Wednesday, December 4, 2019
    It from Qubit Conference
    “Workshop on Qubits and Spacetime”

    Location: Wolfensohn Hall
    Time: 6:00 AM

    Description: Please Note: This workshop is not open to the general public, but only to active researchers.

    This workshop will focus on quantum aspects of black holes, focusing on applying ideas from quantum information theory.

    This meeting is sponsored by the "It from Qubit"collaboration and is followed by the collaboration meeting in New York City.
    https://www.sns.ias.edu/quantum-information-workshop-2019

  • Tuesday, December 10, 2019
    Pheno & Vino Seminar
    “TBA”

    Location: Jadwin Hall, Room 303
    Time: 4:00 PM
    Speaker(s): Simona Murgia, University of California, Irvine

  • Friday, December 13, 2019
    High Energy Theory Seminar
    “TBA”

    Location: Bloomberg Lecture Hall
    Time: 1:45 PM
    Speaker(s): TBA

    Description: