Dublin Institute for Advanced Studies DIAS
Dublin Institute for Advanced Studies DIAS
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3D Gravity from an Ensemble of Approximate CFTs
Speaker: Gabriel Wong (University of Oxford)
Abstract: One of the major insights gained from holographic duality is the relation between the physics of black holes and quantum chaotic systems. This relation is made precise in the duality between two dimensional JT gravity and random matrix theory. In this work, we generalize this to a duality between AdS3 gravity and a random ensemble of approximate CFT’s. The latter is described by a combined tensor and matrix model, describing the OPE coefficients and spectrum of a theory that approximately satisfies the bootstrap constraints. We show that the Feynman diagrams of the random ensemble produce a sum over 3 manifolds that agrees with the partition function of 3d gravity. A crucial element of this dictionary is the Virasoro TQFT, which defines the bulk gravitational path integral via the cutting and sewing relations of topological field theory. Time permitting, we will explain why this TQFT has gravitational edge modes degrees of freedom whose entanglement gives rise to gravitational entropy.
Переглядів: 29

Відео

Mary Mulvihill Award 2024 - Highly Commended Award : Róisín Ferguson
Переглядів 1714 годин тому
Róisín Ferguson, who has just completed a degree in genetics in TCD, took the ostensibly brainless scarecrow from the Wizard of Oz as the starting point for an ambitious exploration of the related concepts of intelligence and cognition-and the relationship of both to the brain and to more rudimentary information processing systems in “aneural organisms”, such as worms, plants, and microbes, whi...
Mary Mulvihill Award 2024
Переглядів 1414 годин тому
marymulvihillaward.ie/award/ The theme of this year’s competition is ‘Intelligence’.
Universal Electromagnetic Properties of Strongly-coupled Electron-phonon Superconductors
Переглядів 12214 днів тому
Speaker: Joshuah T. Heath (Dartmouth College, New Hampshire) Abstract: High-temperature superconductors are characterized by exotic normal states, and are still a subject of intense study nearly four decades after their introduction. A formal attempt to uniquely determine high-Tc behavior is given by Homes law: namely, that there is a linear relationship between T=0 superconducting ground-state...
Search for Cosmic Strings Through Their Gravitational Wave Signals
Переглядів 7221 день тому
Speaker: Marek Lewicki (University of Warsaw) Abstract: We are currently witnessing the dawn of a new era in astrophysics and cosmology, started by the LIGO/Virgo observations of Gravitational Waves (GWs). In this talk I will discuss prospects for detection of GW signals from cosmic strings with the upcoming next generation next generation of experiments and their current status in light of the...
From Classical to Quantum Fields on Causal Sets
Переглядів 7721 день тому
Speaker: Christoph Minz (University of Leipzig) Abstract: In this talk, I will give a brief review of algebraic classical and quantum field theory on causal sets. There are different approaches to quantise the classical fields, of which we consider deformation quantisation and geometric quantisation over the symplectic space of the classical field data that is equipped with an inner product. Fo...
CATCH22+2 2024-05-05
Переглядів 2421 день тому
indico.cern.ch/event/1291893/timetable/?view=standard#day-2024-05-05 (00:00:00) Prof. Cliff Burgess - The Gravity of Particle Physics (Naturally) (00:21:24) Prof. Stefano Profumo - The Primordial Black Holes Variations (00:41:07) Dr. Syksy Räsänen - Primordial black holes from stochastic inflation (00:56:54) Dr. Sachiko Kuroyanagi - Searching new physics via features of the stochastic gravitati...
CATCH22+2 2024-05-04
Переглядів 3821 день тому
indico.cern.ch/event/1291893/timetable/?view=standard#day-2024-05-04 (00:00:00) Prof. Mariano Quiros Carcelen - Dark branes for PTA signal and dark matter (00:18:35) Prof. Michael Spira - Pair production of Higgs Bosons at NLO (00:35:41) Prof. Milada Muhlleitner - Precision Calculations in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) and Phenomenological Implications (00:54:29) Dr....
CATCH22+2 2024-05-03
Переглядів 4021 день тому
indico.cern.ch/event/1291893/timetable/?view=standard#day-2024-05-03 (00:00:00) Prof. Michael Ramsey-Musolf - How Viable Is Electroweak Baryogensis ? (00:20:24) Prof. Stephen Frederick King - Gravitational Waves as Probes of New Physics (00:39:53) Prof. Germano Nardini - Probing first-order phase transitions at LISA (01:01:35) Prof. Kimmo Juhani Kainulainen - Transport equations for electroweak...
CATCH22+2 2024-05-02
Переглядів 5328 днів тому
indico.cern.ch/event/1291893/timetable/?view=standard#day-2024-05-02 (00:00:00) Prof. Patrizia Azzi - BSM at FCC (00:19:57) Prof. Alicia Calderon Tazon - Higgs DM searches in CMS (00:36:55) Dr. Jana Schaarschmidt - Searches for Higgs boson pair production at ATLAS (00:51:56) Dr. Djuna Croon - Constraints and probes of dark matter objects (01:14:03) Prof. Enrico Nardi - Can the QCD axion feed a ...
CATCH22+2 2024-05-01 Afternoon Sessions
Переглядів 100Місяць тому
indico.cern.ch/event/1291893/timetable/?view=standard#day-2024-05-01 (00:00:00) Prof. Tesla Jeltema - Astrophysical Probes of Self-Interacting Dark Matter (00:18:17) Prof. Maria Martinez - Status and Future Prospects of the search for Dark Matter Annual Modulation in NaI (00:34:40) Dr. Valentina De Romeri - Light vector mediators at direct detection experiments (00:51:11) Dr. Cristobal Padilla ...
CATCH22+2 2024-05-01 Morning Sessions
Переглядів 66Місяць тому
indico.cern.ch/event/1291893/timetable/?view=standard#day-2024-05-01 (00:00:00) Dr. Eucharia - Meehan History of DIAS (00:13:54) Prof. Sinead Ryan - Ireland in CERN (00:29:41) Prof. Susan Gascon-Shotkin - Searches for additional low-mass Higgs bosons at the LHC (00:53:57) Dr. Joany Manjarres - Testing the Electroweak Theory with multi-boson polarization measurements (01:15:17) Prof. Jeonghyeon ...
Flavour Puzzles and the LHCb Experiment
Переглядів 45Місяць тому
Speaker: Marcel Merk (Nikhef, Amsterdam) Abstract: Why is there no antimatter in the universe and why does nature provide us with three generations of similar fundamental fermions? These so-called flavour puzzles are among the most intriguing mysteries in particle physics. In the seminar we will discuss the origin of CP violation in the Standard Model and review highlights of CP violating measu...
Flavour Puzzles and the LHCb Experiment
Переглядів 17Місяць тому
Speaker: Marcel Merk (Nikhef, Amsterdam) Abstract: Why is there no antimatter in the universe and why does nature provide us with three generations of similar fundamental fermions? These so-called flavour puzzles are among the most intriguing mysteries in particle physics. In the seminar we will discuss the origin of CP violation in the Standard Model and review highlights of CP violating measu...
Covariant Loop Quantum Gravity and Cosmology
Переглядів 87Місяць тому
Speaker: Francesca Vidotto (Western University, Ontario) Abstract: The covariant formulation of Loop Quantum Gravity dynamics, referred also as Spinfoam, provides currently the most complete formulation for a non-perturbative theory of quantum gravity. It is a formulation of the gravitational path integral as a discrete sum over geometries: it gives well defined transition amplitudes in 4-dimen...
An Overview of the E11 Program
Переглядів 34Місяць тому
An Overview of the E11 Program
Frame PB-groupoid of a VB-groupoid
Переглядів 13Місяць тому
Frame PB-groupoid of a VB-groupoid
Correlations, Representations and the Emergence of Spacetime
Переглядів 1042 місяці тому
Correlations, Representations and the Emergence of Spacetime
New Physics: Where Do We Stand?
Переглядів 1442 місяці тому
New Physics: Where Do We Stand?
Dark Energy with a Little Help from its Friends (and why it might need somebody)
Переглядів 452 місяці тому
Dark Energy with a Little Help from its Friends (and why it might need somebody)
Green Functions for Black Hole Spacetimes: Wave Propagation/Self-Force/Stability/Quantum Properties
Переглядів 632 місяці тому
Green Functions for Black Hole Spacetimes: Wave Propagation/Self-Force/Stability/Quantum Properties
Three-dimensional Massive Gravity and the Fractional Quantum Hall Effect
Переглядів 883 місяці тому
Three-dimensional Massive Gravity and the Fractional Quantum Hall Effect
Non-Relativistic Gravity
Переглядів 793 місяці тому
Non-Relativistic Gravity
Entanglement Resolution and Boundary Conformal Field Theory
Переглядів 623 місяці тому
Entanglement Resolution and Boundary Conformal Field Theory
Maxwell Theory of Fractons
Переглядів 743 місяці тому
Maxwell Theory of Fractons
Monopoles and Baryons from Sphalerons and Instantons
Переглядів 704 місяці тому
Monopoles and Baryons from Sphalerons and Instantons
Staggered Bosons
Переглядів 764 місяці тому
Staggered Bosons
Physics Opportunities of CEvNS Experiments
Переглядів 564 місяці тому
Physics Opportunities of CEvNS Experiments
Spin-resolved Topology in Quantum Materials
Переглядів 534 місяці тому
Spin-resolved Topology in Quantum Materials
Freeze-in: Problems and Opportunities
Переглядів 244 місяці тому
Freeze-in: Problems and Opportunities

КОМЕНТАРІ

  • @gpwbernardrementillachairm3736
    @gpwbernardrementillachairm3736 20 днів тому

    Thank you, Dr. Pauline Gagnon. You are a great woman of science. of justice and you want the truth in scientific human history from the context of justice and goodness of human life on Earth centering on a very historically sensitive subject matter that you are dealing with by all honesty and respect. Beautiful and great heart of a woman that you are. Truthfully, YOU make me cry along the way listening to your lecture which I felt deep in my spirit you did it from both heart and intellect of your humanity to find the truths and eliminate the myths about Albert Einstein lifetime scientific career [a True Albert Einstein...] 1896 til his death on April 18, 1955, 1:15 AM, Princeton Hospital, USA., in order to get to know the truths and facts of the life of Mileva Marity "DoLLie" Marić’ (MMDM), 1896 til her death on August 4, 1948. Quite emphatically, I can "feel" that MMDM greatly appreciates w/ happy gratitude & joyful glimpse of a smile to her heart-content with & by your efforts & objectivity -- as much as she lives in the Spirit World w/ GOD'S fatherly care & protection and that she is thanking you profoundly. This is true ... How I wish I were there physically in the Lecture (Conference) Room during your Lecture, to support you & share with you your admirable hindsights & insights. I am with you and I do. Thank you, Gpw Bernard Bautista Rementilla

  • @tuk7raz
    @tuk7raz 21 день тому

    ❤ При регистрации гравитационных волн LIGO, полезный сигнал 0,2% на шум приходится 99,8%. По другому можно сказать. - Если случайно совпадают шумы (мусор), на двух или трёх детекторах, то их нам выдадут как гравитационные волны, согласно подготовленных заранее шаблонов. На “ГИБРИД оптическом гироскопе" при регистрации, квантов гравитации оптом. Возможно полезные сигнал получим 74% и на шумы 26%. - Вам выбирать рулетку - что измеряет Вселенную и из чего, главное она состоит.

  • @freedomsaoirse
    @freedomsaoirse 3 місяці тому

    Galánta. It would be nice to have the 'subtitles' or text on the screen as you read the selections.

    • @DIASDublin
      @DIASDublin 2 місяці тому

      If you click the cc button on the screen it adds captions, hope this helps

  • @feels_bad-man
    @feels_bad-man 3 місяці тому

    Thanks for the recording!

  •  4 місяці тому

    Law making process 🏰🏰🏰

  • @inverse_functor
    @inverse_functor 6 місяців тому

    Toric variety

  • @michaelmerrigan3086
    @michaelmerrigan3086 6 місяців тому

    Excellent!!

  • @dr.merlot1532
    @dr.merlot1532 9 місяців тому

    Big dick theories!

  • @CHUCKBALLER2024
    @CHUCKBALLER2024 10 місяців тому

    The way I see the world, atoms with force and energy blink into excitement when you are looking at them, and what you touch becomes a force with atomic particles. Everything 1 mm from your body is really not there when the earth is in rotation with our solar system and our galaxy traveling in one direction at 230.000 miles per second. Water is really not there; there are only water atoms you touch. Think of it this way: we are all on a lattice we can't see. Dark matter layered with dark energy with all matter moving in one direction, blinking in and out of excitation. You and I are moving on lattice, and what we touch for microseconds That's how neutrinos pass right through us and the earth without entering action. Plus, there could be a light photon connector that connects us with other life out there. I'm a nobody, but a lifetime of no drugs, drinking, or smoking made my IQ only 147, and I created a world-first, time-priced painting with a new medium and color, making it into the art world. Search Google for "Joseph Charles Colin."

  • @patrickwhite4413
    @patrickwhite4413 11 місяців тому

    😘 'promosm'

  • @arlenestanton9955
    @arlenestanton9955 Рік тому

    Can any one understand this? What kind of math beyond, calculus and linear algebra, do you need to know or learn, to understand this kind of math.

  • @liamomurchu4432
    @liamomurchu4432 Рік тому

    Excellent lecture, and intriguing discussion

  • @AyeKay_ESK
    @AyeKay_ESK Рік тому

    I was at that lecture

  • @owenmcgee8496
    @owenmcgee8496 Рік тому

    Interesting. I saw some books on Irish literature in the past (e.g. of poetry by Irish & English language authors), but always got the sense that a personal voice, what would might later recognise as a literary voice, was largely absent from Irish language writing. So any kind of study that uncovers the history of a personal voice in Irish language literature is of interest. Interesting too this poem was discovered in Scotland. The Irish in Scotland in medieval times is a subject that may never have been properly excavated or maybe there's just not sources there to delineate a subject. Only a subset, not a set, I bet.

  • @ashishmeena8072
    @ashishmeena8072 Рік тому

    Hi, can you provide a solare flare and CME data in 24 solar cycle

    • @augustinemmuogbana3382
      @augustinemmuogbana3382 Рік тому

      For CME data for cycle 24, check CDAW

    • @ashishmeena8072
      @ashishmeena8072 Рік тому

      @@augustinemmuogbana3382 Hi my self Ashish i am PhD Scholar i need your help in my research can you share your Email Id

  • @Rgoiwnes
    @Rgoiwnes Рік тому

    26:50 Please give a warning for the earblast.

  • @muskduh
    @muskduh 2 роки тому

    Thanks for the video

  • @MsFionaxxx
    @MsFionaxxx 2 роки тому

    When he was in government, and meeting British counterparts, the Brits were taken aback to realise that he was far more educated than them (Ph.D.), spoke better than them, had a posher accent than them, and had been born and educated in England to an Irish father. Now he was a Paddy in the Irish government!

  • @cloakingcryptids2057
    @cloakingcryptids2057 2 роки тому

    Wind comes from jets

  • @samuelbeckett2006
    @samuelbeckett2006 2 роки тому

    Really loved this talk!

  • @sitaramgupta9616
    @sitaramgupta9616 2 роки тому

    Great effort.

  • @quantumofspace1367
    @quantumofspace1367 2 роки тому

    Quantum gravity with dark energy works like this; all matter in the Universe excites around itself a quantum space for expansion (pulsations by quantum oscillations of waves). But at the same time, bodies opposite to each other create wave interference, prevent the expansion of the quantum space, for this reason the pressure of the quantum space between the bodies will decrease, resulting in a quantum gravitational attraction of bodies... .

  • @davidwilkie9551
    @davidwilkie9551 2 роки тому

    When Newton identified a Mathematical infinitesimal coordination-identification positioning as a Fluxion, by default Quantum logic of Superspin transverse trancendental e-Pi wave-packaging along a logarithmic line-of-sight, the association with the superimposed integral corresponded to Temporal orbital-orbits in ONE-INFINITY Singularity Superposition-point density-intensity real-numberness existence of Time-Space and String Theoretical Calculus incidence of AM-FM time-timing modulation sync-duration integration.., Logarithmic Time Mechanism for e-log ,Pi-bifurcation antilog axial-tangential orthogonality Condensates. A Geometrical Drawing & Perspective Conception of real-time Superspin Modulation Mechanism, QM-TIME.

  • @CONNELL19511216
    @CONNELL19511216 2 роки тому

    I absolutely loved every moment of this. Well done!

  • @seanmolloy2491
    @seanmolloy2491 2 роки тому

    They should asked for beagáinín pasta

  • @nxgrs74
    @nxgrs74 2 роки тому

    1) By reflecting away 30% of ISR the albedo, which would not exist w/o the atmosphere/GHGs, makes the earth cooler than it would be without that atmosphere like that reflective panel set behind the windshield. Remove the atmosphere/GHGs and the earth would become much like the Moon and Mercury, a barren rock with a 0.1 albedo, 20% more kJ/h, hot^3 on the lit side, cold^3 on the dark. Nikolov, Kramm (U of AK) and UCLA Diviner mission all tacitly agree. 2) the GHG up/down welling, “trapping”/”back” radiating/delaying/intercepting, 100 % efficient, perpetual warming loop requires "extra" energy which according to RGHE theory comes from 3) the terrestrial surface radiating that "extra" energy as a LWIR ideal black body which 4) cannot happen because of the non-radiative heat transfer processes of the contiguous atmospheric molecules and as demonstrated by experiment, the gold standard of classical science: principia-scientific.org/debunking-the-greenhouse-gas-theory-with-a-boiling-water-pot/ 1+2+3+4 = 0 Greenhouse Effect + 0 Greenhouse gas warming + 0 man caused climate change. Version 1.0 062321

  • @fitzgibbano
    @fitzgibbano 3 роки тому

    maith sibh!

  • @fionnmaguireoloughlin3538
    @fionnmaguireoloughlin3538 3 роки тому

    Prof. Dennis Jones doing bits

  • @MarriageSupper06
    @MarriageSupper06 3 роки тому

    It's like All of space behaves like a black hole, particles as planets emergence of one matter

  • @samuelkovacik6062
    @samuelkovacik6062 3 роки тому

    Great vid, thanks Nike!

  • @dillbott2733
    @dillbott2733 3 роки тому

    Thanks for sharing! I searched for this title almost exactly and here it is just a week old

  • @minoomehrad2712
    @minoomehrad2712 3 роки тому

    We praud of you and your group 🙏🙏🙏🙏🙏🙏👍👍👍👍

  • @efrensantosjr
    @efrensantosjr 3 роки тому

    Very technical lecture! Learned a lot!

  • @FraterRC
    @FraterRC 3 роки тому

    <3 go Ionteach!

  • @MacKenziePoet
    @MacKenziePoet 3 роки тому

    This is glorious!

  • @ShaunJW1
    @ShaunJW1 3 роки тому

    Great presentation

  • @caveyful
    @caveyful 3 роки тому

    A black hole doesn't exist, it's 3D surface is encoded onto a 2D event horizon. There is no funnel to the singularity, that model is used for conceptual purposes. This 2D event horizon are the loops of string mathematics implies.

  • @fungo44
    @fungo44 3 роки тому

    Great talk

  • @peterstokes3978
    @peterstokes3978 3 роки тому

    Newton made an incorrect assumption when he thought that matter attracts matter. Gravity can better be explained when another assumption is made: I hold that the correct assumption is that matter and space (what ever that is) are mutually repellent. A body of matter like a planet for example, repels or displaces the space (spacial field) around it. The repelled space in turn reacts on the matter that repelled it and forms it into a coherent sphere. If a body of matter with it's displaced spacial field comes within the influence of another body with it's displaced spacial field, then the two fields will tend to combine to attain a single displaced spacial field, such that the combined resultant force on the two bodies will bring the two bodies together. (Unless their angle and speeds are such that they either orbit each other, or veer off at an angle.) If the two bodies come together, they coalesce into one body with a greater mass, and also therefore a greater displaced spacial field. The two displaced fields now act as one. This now larger newly combined displaced spacial field, (like all displaced spacial fields), would tend to collapse to the neutral steady state of space without any material body present but, in the presence of a body of matter, a state of mutual repulsion occurs, which is the force of 'gravity'. Ones own body weight is determined by the mass of the body you stand on, and therefore it's displaced spacial field, which is combined with your own locally displaced field due to your own body mass. The two fields now act towards the common centre of displacement, which is equal the the centre of combined mass. You're welcome.

  • @new-knowledge8040
    @new-knowledge8040 3 роки тому

    If special relativity(SR) makes little sense to you on the whole, here is the funny part. It is a gazillion times easier to discover SR all by yourself. On top of that, there is a simple way to derive the SR mathematical equations. This method is not taught in schools, but it is a method that allows you to derive the SR equations in mere minutes, including deriving the Lorentz transformation equations.

  • @SporeMurph
    @SporeMurph 3 роки тому

    Nice film and good discussion.

  • @mikefoylan6612
    @mikefoylan6612 3 роки тому

    Such an amazing lady, an inspiration to all and explaining very well complex things a layperson could easily understand. Thank you for making this presentation available and thank you to Professor Dame Jocelyn Bell Burnell for bringing the Universe down to Earth!

  • @8buto
    @8buto 3 роки тому

    0:41 activedating.online

  • @mudboy391
    @mudboy391 4 роки тому

    Beautiful!

  • @geryvantroyen2614
    @geryvantroyen2614 4 роки тому

    Sorry, stopped watching after 6 minutes. Is this the way to cover a lecture in 2018? One static camera and one static microphone? Where are the slides? Maybe it was not intended to make a perfect coverage of the lecture, so I apologize.

  • @aldbby
    @aldbby 4 роки тому

    He could read gaelic to me all day what a cutie.

  • @DIASDublin
    @DIASDublin 4 роки тому

    Hello all, managed to secure the slides. They are available on our website at www.dias.ie/2018/06/14/13th-june-2018-school-of-theoretical-physics-statutory-public-lecture-by-professor-terence-rudolph/

  • @raviingle570
    @raviingle570 4 роки тому

    Prof Terence Rudolph is a great grandson of Schroedinger, a famous Quantum physicist