Topological Matter School
Topological Matter School
  • Видео 151
  • Просмотров 154 180
TMS23 Stepan Tsirkin Hands-On
Numerical computations of nonlinear transport with WannierBerri code II
Просмотров: 167

Видео

TMS23 Stepan Tsirkin Hands-On
Просмотров 21111 месяцев назад
Numerical computations of nonlinear transport with WannierBerri code I
TMS23 Andrei Bernevig Lecture 1
Просмотров 1,6 тыс.11 месяцев назад
Quantum geometry in flat bands and dispersive systems I
TMS23 Andrei Bernevig Lecture 2
Просмотров 62611 месяцев назад
Quantum geometry in flat bands and dispersive systems II
TMS23 Jule Ibañez-Azpiroz Lecture 1
Просмотров 14111 месяцев назад
Geometric aspects of quadratic optical responses
TMS23 Julen Ibañez Azpiroz Lecture 2
Просмотров 13911 месяцев назад
Shift photocurrent: Wannier interpolation and dipole selection rules
TMS23 Qiong Ma Lecture 2
Просмотров 38511 месяцев назад
Topology and Geometry under the Nonlinear Electromagnetic Spotlight: An Experimental Perspective II
TMS23 Qiong Ma Lecture 1
Просмотров 77811 месяцев назад
Topology and Geometry under the Nonlinear Electromagnetic Spotlight: An Experimental Perspective I
TMS23 John Sipe Lecture 2
Просмотров 18111 месяцев назад
Polarization and magnetization: from molecules to solids
TMS23 John Sipe Lecture 1
Просмотров 32811 месяцев назад
Nonlinear optics: a first look
TMS23 Phuan Ong Lecture 2
Просмотров 12211 месяцев назад
Chern number, Berry curvature and thermal Hall conductivity in the Kitaev magnet a-RuCl3
TMS23 Philip Moll Lecture 2
Просмотров 18311 месяцев назад
Experimentally hunting topology via quantum oscillations” 2. “Introduction into quasi-symmetry
TMS23 Nadya Mason Lecture 2
Просмотров 4011 месяцев назад
Topological Magnetic Devices
TMS23 Jennifer Cano Lecture 2
Просмотров 28811 месяцев назад
Higher order topology
TMS23 Dima Pesin Lecture 2
Просмотров 12811 месяцев назад
Semiclassical transport in metals with band geometry II
TMS23 David Vanderbilt Lecture 2
Просмотров 53011 месяцев назад
TMS23 David Vanderbilt Lecture 2
TMS23 Philip Moll
Просмотров 12311 месяцев назад
TMS23 Philip Moll
TMS23 Phuan Ong Lecture 1
Просмотров 26811 месяцев назад
TMS23 Phuan Ong Lecture 1
TMS23 Nadya Mason Lecture 1
Просмотров 21411 месяцев назад
TMS23 Nadya Mason Lecture 1
TMS23 Dima Pesin Lecture 1
Просмотров 43211 месяцев назад
TMS23 Dima Pesin Lecture 1
TMS23 Jennifer Cano Lecture 1
Просмотров 62011 месяцев назад
TMS23 Jennifer Cano Lecture 1
TMS23 Vanderbilt Lecture 1
Просмотров 1,7 тыс.11 месяцев назад
TMS23 Vanderbilt Lecture 1
Andrei Bernevig Topological Flatbands
Просмотров 1,9 тыс.Год назад
Andrei Bernevig Topological Flatbands
Ady Stern Platforms for Realizing Non Abelian States of Matter II
Просмотров 235Год назад
Ady Stern Platforms for Realizing Non Abelian States of Matter II
Ady Stern Platforms for Realizing Non Abelian States of Matter I
Просмотров 379Год назад
Ady Stern Platforms for Realizing Non Abelian States of Matter I
Vidya Madhavan STM Studies of Majorana Modes
Просмотров 245Год назад
Vidya Madhavan STM Studies of Majorana Modes
Vidya Madhavan Measurements of Topological Boundary States in 1D and 2D
Просмотров 435Год назад
Vidya Madhavan Measurements of Topological Boundary States in 1D and 2D
Jason Alicea Topological Superconductivity and Majorana Modes II
Просмотров 711Год назад
Jason Alicea Topological Superconductivity and Majorana Modes II
Jason Alicea Topological Superconductivity and Majorana Modes II
Просмотров 821Год назад
Jason Alicea Topological Superconductivity and Majorana Modes II
Eliska Greplova Machine Learning for Quantum Applications
Просмотров 237Год назад
Eliska Greplova Machine Learning for Quantum Applications

Комментарии

  • @user-ei9bm7mv6h
    @user-ei9bm7mv6h 13 дней назад

    .#zZz#.⚡⬆️⬇️💀☢☣КОДОВОЕ/ЯДЕРНОЕ/КОНВЕКЦ.ИЗЛУЧЕНИЕ ЭП ДЕЛЕНИЯ МАТЕРИИ СЧЁТА - ЭТО ФУНДАМЕНТАЛЬНАЯ СИСТЕМА/ВВОДА И ЯДЕРНОГО ПЕРЕМЕЩЕНИЯ ЭП/ТРАНСПОРТА СИСТЕМ!.КАК Я ПИСАЛ РАНЕЕ,ЧТО ЖИЗНЬ НА ЗЕМЛЕ НЕ МОГЛА БЫ БЫТЬ ПО ОПРЕДЕЛЕНИЮ,ТОЛЬКО И ИСКЛЮЧИТЕЛЬНО ПО СЧЁТУ/ЗАКРЫТИЯ ПЛАЗМЕННО/УРАНОВОГО ПРЕВРАЩЕНИЯ ТРАНСПОРТА ЯДРА/ЗЕМЛИ💀,ПО КОДОВОМУ/ЯДЕРНОМУ/КОНВЕКЦ.ИЗЛУЧЕНИЮ ЗАКРЫТИЯ ЭП!.Т.К.ВСЕ ЯДЕРНЫЕ СИСТЕМЫ ЦИКЛА/НАЛОЖЕНИЯ ЯДЕРНОГО ПОТЕНЦИАЛА МАТЕРИИ,ПЕРЕМЕЩАЛИСЬ В МОЛЛЕКУЛЯРНО/КИНЕТИЧЕСКОМ НАБОРЕ РАЗДЕЛЕНИЯ ЭП💀,ФОТОННО/ЭЛЕКТРОННОГО СИНТЕЗА НАЛОЖЕНИЯ ЭП💀,ВИРУСНОЙ СИСТЕМЫ И БАКТЕРИЙ/СИНТЕЗА ВВОДА💀,КОДОВОГО/ЯДЕРНОГО ЗАКРЫТИЯ ЭП СЧЁТА СИСТЕМ ПРОТОННО/НЕЙТРОННОГО ДЕЛЕНИЯ💀,ПО ЯДЕРНОМУ ВОЗВРАТУ ЭП💀💀💀💀💀⚡🔥🔥🔥🔥⚫⚫⚫⚫💀💀💀💀💀⚡⚡⚡

  • @user-ei9bm7mv6h
    @user-ei9bm7mv6h 14 дней назад

    .#zZz#.⚡⬇️⬆️💀☢☣МНОГО ЛЕТ НАЗАД Я ПИСАЛ,ЧТО НУЖНО БУДЕТ ПЕРЕСМАТРИВАТЬ ВСЕ ЯДЕРНЫЕ ТЕХНОЛОГИИ ВВОДА СЛЕДСТВИЙ ТЕРРИТОРИЙ💀⚡🔥ВСЕ РОГОТАЛИ ДО СМЕХА.....НО УЖЕ ТОГДА ПРОВОДИЛИ В МЕНЯ ТЫСЯЧАМИ ЯДЕРНЫЕ ЭКСПЕРЕМЕНТЫ!.ПОВТОРЯЮ ЕЩЁ РАЗ - ТЫСЯЧАМИ💀💀💀💀💀💀💀⚡🔥Т.Е.СИСТЕМЕ ЯДЕРНОГО ИЗМЕНЕНИЯ И ТОТАЛЬНОГО/ЯДЕРНОГО РАССКРЫТИЯ ЭП,НИЧЕГО НЕ НУЖНО!.ИМ НУЖНЫ ТОЛЬКО ТЕХНОЛОГИИ...💀💀💀💀💀⚡🔥🤣😂🤣😂🤣😂🤣😂🤣🤣🤣😂ЗЕМЛЯ - КОДОВАЯ!.ОНА НАЛОЖЕНА СИСТЕМАМИ/ПРЕВРАЩЕНИЯ ЭП ДЕЛЕНИЯ МАТЕРИИ СИНТЕЗА ЗЕМЛИ!.КОДОВЫЙ НЕЙТРОН ЭП/ДЕЛЕНИЯ МАТЕРИИ - РАСЩЕПЛЯЛ ВСЕ ЯДЕРНЫЕ ВВОДЫ ВИРУСНОЙ СИСТЕМЫ/ЭКСПЕРЕМЕНТОВ💀💀💀💀💀💀💀⚡🔥КОДОВЫЙ НЕЙТРОН ЭП/ДЕЛЕНИЯ МАТЕРИИ - ПРОСТО ПРЕВРАЩАЛ В МЕЛ ВСЁ!.💀💀💀💀💀💀💀⚡🔥ЕСЛИ ЯДЕРНЫЙ ВВОД ВВОДИТСЯ - PuCdZrB#💀 В УРОВНЕВОМ К.Т.В.#💀,ЧТО МОЖЕТ ОСТАТЬСЯ????.ПРОСТО МЕЛ С ГОРОДОВ,И СОТНИ ТЫСЯЧИ ПОГИБШИХ ГРАЖДАН,ПРИНЯВШИХ КОДОВУЮ СМЕРТЬ ЭП/ИЗЛУЧЕНИЯ МОЕГО💀💀💀💀💀💀⚡🔥А ВЕДЬ ЭКСПЕРЕМЕНТЫ В МЕНЯ ПРОВОДИЛИСЬ ДЕСЯТИЛЕТИЕМ....💀💀💀💀💀⚡🔥🔥🔥🔥⚫⚫⚫⚫💀💀💀💀💀⚡⚡⚡

  • @sniperman3110
    @sniperman3110 Месяц назад

    what a nice enthusiastic lecturer"

  • @skipper472
    @skipper472 Месяц назад

    Great video!

  • @fabian.medina.c
    @fabian.medina.c 4 месяца назад

    I have a question... in a simple system of two bands with Fermi level at zero. Then, one band goes up and the other band goes down without the two of them touch each other (meaning indirect closing of the gap and therefore a change in the occupation) can we still define the Zak phase?.

  • @brendawilliams8062
    @brendawilliams8062 5 месяцев назад

    If you have extra resources I would like to view them. 31707104/9024 or 3168666/90181818. Questions about the summation of one as a monopole

  • @brendawilliams8062
    @brendawilliams8062 5 месяцев назад

    I am commenting because it appears that throwing symmetry in then you’re going to get symmetry back.

  • @brendawilliams8062
    @brendawilliams8062 5 месяцев назад

    To me in my limited education it appears a string from 10072 to 10074381834 is challenging enough and the extra business with a monopole. Geez

  • @brendawilliams8062
    @brendawilliams8062 5 месяцев назад

    It was interesting he mentioned helical. I am not on this level. Just an interested visitor. Still, it was pointing towards strings. Thx. For the opportunity

  • @peizeding2649
    @peizeding2649 8 месяцев назад

    Too many adds

  • @SpotterVideo
    @SpotterVideo 10 месяцев назад

    Conservation of Spatial Curvature (Both Matter and Energy described as "Quanta" of Spatial Curvature. A string is revealed to be a twisted cord when viewed up close.) Is there an alternative interpretation of "Asymptotic Freedom"? What if Quarks are actually made up of twisted tubes which become physically entangled with two other twisted tubes to produce a proton? Instead of the Strong Force being mediated by the constant exchange of gluons, it would be mediated by the physical entanglement of these twisted tubes. When only two twisted tubules are entangled, a meson is produced which is unstable and rapidly unwinds (decays) into something else. A proton would be analogous to three twisted rubber bands becoming entangled and the "Quarks" would be the places where the tubes are tangled together. The behavior would be the same as rubber balls (representing the Quarks) connected with twisted rubber bands being separated from each other or placed closer together producing the exact same phenomenon as "Asymptotic Freedom" in protons and neutrons. The force would become greater as the balls are separated, but the force would become less if the balls were placed closer together. Therefore, the gluon is a synthetic particle (zero mass, zero charge) invented to explain the Strong Force. An artificial Christmas tree can hold the ornaments in place, but it is not a real tree. String Theory was not a waste of time, because Geometry is the key to Math and Physics. However, can we describe Standard Model interactions using only one extra spatial dimension? What did some of the old clockmakers use to store the energy to power the clock? Was it a string or was it a spring? What if we describe subatomic particles as spatial curvature, instead of trying to describe General Relativity as being mediated by particles? Fixing the Standard Model with more particles is like trying to mend a torn fishing net with small rubber balls, instead of a piece of twisted twine. Quantum Entangled Twisted Tubules: “We are all agreed that your theory is crazy. The question which divides us is whether it is crazy enough to have a chance of being correct.” Neils Bohr (lecture on a theory of elementary particles given by Wolfgang Pauli in New York, c. 1957-8, in Scientific American vol. 199, no. 3, 1958) The following is meant to be a generalized framework for an extension of Kaluza-Klein Theory. Does it agree with some aspects of the “Twistor Theory” of Roger Penrose, and the work of Eric Weinstein on “Geometric Unity”, and the work of Dr. Lisa Randall on the possibility of one extra spatial dimension? During the early history of mankind, the twisting of fibers was used to produce thread, and this thread was used to produce fabrics. The twist of the thread is locked up within these fabrics. Is matter made up of twisted 3D-4D structures which store spatial curvature that we describe as “particles"? Are the twist cycles the "quanta" of Quantum Mechanics? When we draw a sine wave on a blackboard, we are representing spatial curvature. Does a photon transfer spatial curvature from one location to another? Wrap a piece of wire around a pencil and it can produce a 3D coil of wire, much like a spring. When viewed from the side it can look like a two-dimensional sine wave. You could coil the wire with either a right-hand twist, or with a left-hand twist. Could Planck's Constant be proportional to the twist cycles. A photon with a higher frequency has more energy. ( E=hf, More spatial curvature as the frequency increases = more Energy ). What if Quark/Gluons are actually made up of these twisted tubes which become entangled with other tubes to produce quarks where the tubes are entangled? (In the same way twisted electrical extension cords can become entangled.) Therefore, the gluons are a part of the quarks. Quarks cannot exist without gluons, and vice-versa. Mesons are made up of two entangled tubes (Quarks/Gluons), while protons and neutrons would be made up of three entangled tubes. (Quarks/Gluons) The "Color Charge" would be related to the XYZ coordinates (orientation) of entanglement. "Asymptotic Freedom", and "flux tubes" are logically based on this concept. The Dirac “belt trick” also reveals the concept of twist in the ½ spin of subatomic particles. If each twist cycle is proportional to h, we have identified the source of Quantum Mechanics as a consequence twist cycle geometry. Modern physicists say the Strong Force is mediated by a constant exchange of Gluons. The diagrams produced by some modern physicists actually represent the Strong Force like a spring connecting the two quarks. Asymptotic Freedom acts like real springs. Their drawing is actually more correct than their theory and matches perfectly to what I am saying in this model. You cannot separate the Gluons from the Quarks because they are a part of the same thing. The Quarks are the places where the Gluons are entangled with each other. Neutrinos would be made up of a twisted torus (like a twisted donut) within this model. The twist in the torus can either be Right-Hand or Left-Hand. Some twisted donuts can be larger than others, which can produce three different types of neutrinos. If a twisted tube winds up on one end and unwinds on the other end as it moves through space, this would help explain the “spin” of normal particles, and perhaps also the “Higgs Field”. However, if the end of the twisted tube joins to the other end of the twisted tube forming a twisted torus (neutrino), would this help explain “Parity Symmetry” violation in Beta Decay? Could the conversion of twist cycles to writhe cycles through the process of supercoiling help explain “neutrino oscillations”? Spatial curvature (mass) would be conserved, but the structure could change. ===================== Gravity is a result of a very small curvature imbalance within atoms. (This is why the force of gravity is so small.) Instead of attempting to explain matter as "particles", this concept attempts to explain matter more in the manner of our current understanding of the space-time curvature of gravity. If an electron has qualities of both a particle and a wave, it cannot be either one. It must be something else. Therefore, a "particle" is actually a structure which stores spatial curvature. Can an electron-positron pair (which are made up of opposite directions of twist) annihilate each other by unwinding into each other producing Gamma Ray photons? Does an electron travel through space like a threaded nut traveling down a threaded rod, with each twist cycle proportional to Planck’s Constant? Does it wind up on one end, while unwinding on the other end? Is this related to the Higgs field? Does this help explain the strange ½ spin of many subatomic particles? Does the 720 degree rotation of a 1/2 spin particle require at least one extra dimension? Alpha decay occurs when the two protons and two neutrons (which are bound together by entangled tubes), become un-entangled from the rest of the nucleons . Beta decay occurs when the tube of a down quark/gluon in a neutron becomes overtwisted and breaks producing a twisted torus (neutrino) and an up quark, and the ejected electron. The production of the torus may help explain the “Symmetry Violation” in Beta Decay, because one end of the broken tube section is connected to the other end of the tube produced, like a snake eating its tail. The phenomenon of Supercoiling involving twist and writhe cycles may reveal how overtwisted quarks can produce these new particles. The conversion of twists into writhes, and vice-versa, is an interesting process, which is also found in DNA molecules. Could the production of multiple writhe cycles help explain the three generations of quarks and neutrinos? If the twist cycles increase, the writhe cycles would also have a tendency to increase. Gamma photons are produced when a tube unwinds producing electromagnetic waves. ( Mass=1/Length ) The “Electric Charge” of electrons or positrons would be the result of one twist cycle being displayed at the 3D-4D surface interface of the particle. The physical entanglement of twisted tubes in quarks within protons and neutrons and mesons displays an overall external surface charge of an integer number. Because the neutrinos do not have open tube ends, (They are a twisted torus.) they have no overall electric charge. Within this model a black hole could represent a quantum of gravity, because it is one cycle of spatial gravitational curvature. Therefore, instead of a graviton being a subatomic particle it could be considered to be a black hole. The overall gravitational attraction would be caused by a very tiny curvature imbalance within atoms. In this model Alpha equals the compactification ratio within the twistor cone, which is approximately 1/137. 1= Hypertubule diameter at 4D interface 137= Cone’s larger end diameter at 3D interface where the photons are absorbed or emitted. The 4D twisted Hypertubule gets longer or shorter as twisting or untwisting occurs. (720 degrees per twist cycle.) How many neutrinos are left over from the Big Bang? They have a small mass, but they could be very large in number. Could this help explain Dark Matter? Why did Paul Dirac use the twist in a belt to help explain particle spin? Is Dirac’s belt trick related to this model? Is the “Quantum” unit based on twist cycles? I started out imagining a subatomic Einstein-Rosen Bridge whose internal surface is twisted with either a Right-Hand twist, or a Left-Hand twist producing a twisted 3D/4D membrane. This topological Soliton model grew out of that simple idea. I was also trying to imagine a way to stuff the curvature of a 3 D sine wave into subatomic particles.

  • @alezzi_mm
    @alezzi_mm 11 месяцев назад

    Where can we find the homework problems Steven talking about? any URL? thanks

  • @anastasiiachyzhykova4238
    @anastasiiachyzhykova4238 Год назад

    May I please ask this question: You said this in the beginning of the lecture 2:12: 'If we look at the data of the longitudinal magnetoresistance we see that it is an insulator. On all these plateaus we see these regions where the resistance is zero, so that fits with our previous definition (of an insulator)...' An insulator has a big resistance. Please, could you explain this statement of yours? Thank you in advance. I understand that the question is silly:) I just want to get to know this topic.

    • @pseudolullus
      @pseudolullus 8 месяцев назад

      It's not a silly question, it's actually an important point(!) An explanation is in this channel's video "TMS19 Steve Simon: Intro to integer and fractional QHE (I)" around minute 8:40

  • @molelpc6953
    @molelpc6953 Год назад

    Thnx

  • @tanchienhao
    @tanchienhao Год назад

    Awesome lecture! Linked together a lot of my piecewise knowledge

  • @TheMemesofDestruction
    @TheMemesofDestruction Год назад

    14:35 -- Gamma is pretty Groovy! ^.^

  • @rodrigoabreu3305
    @rodrigoabreu3305 Год назад

    Any chance we recover part II of these lectures?

  • @alipedram5720
    @alipedram5720 Год назад

    The lecture is very clear and pedagogical. Thank you!

  • @richardzexunlin6155
    @richardzexunlin6155 2 года назад

    Nice talk!

  •  2 года назад

    Really great talk, super clear, thank you!

  • @hoaianhho33
    @hoaianhho33 2 года назад

    This one is very helpful. Thank you.

  • @somedude488
    @somedude488 2 года назад

    Every second of this is eye-opening. Thanks Cano, you are a gift.

  • @rasoulghadimi3546
    @rasoulghadimi3546 2 года назад

    thanks

  • @user-rj9go7ef7o
    @user-rj9go7ef7o 2 года назад

    nice speech

  • @mayangbeautiful1859
    @mayangbeautiful1859 3 года назад

    THE CASUAL GIRLS ARE BIGTITITS.UNO THREE IN ONE RUclips: THIS IS FINE. SOMEONE: SAYS ''HECK''. RUclips: BE GONE Life's story is a short journey so have fun before sleeping forever #Чо #эт #делает #на #2 #месте #в #тренде #однако #я #люблю #таких #рыбаков .#垃圾.

  • @rasoulghadimi3546
    @rasoulghadimi3546 3 года назад

    Thanks for sharing

  • @saharsoumeeh9341
    @saharsoumeeh9341 3 года назад

    very nice and clear presentation. thanks a lot.

    • @simonpeters6845
      @simonpeters6845 2 года назад

      cap, most difficult thing ever. She explained it like she had to little time

  • @rasoulghadimi3546
    @rasoulghadimi3546 3 года назад

    Thanks for sharing

  • @rasoulghadimi3546
    @rasoulghadimi3546 3 года назад

    Thanks

  • @rasoulghadimi3546
    @rasoulghadimi3546 3 года назад

    thanks

  • @sdu28
    @sdu28 3 года назад

    Could you recommend a book/resource for practise problems specifically on Matrix-Product States, Entanglement and DMRG?

  • @anterdipansingh8422
    @anterdipansingh8422 3 года назад

    brilliant ..the lecture was just brilliant..thanks a lot steve simon sir

  • @priyam8226
    @priyam8226 3 года назад

    How To develop a Josephson Junction?

  • @kuntalbhattacharyya7450
    @kuntalbhattacharyya7450 4 года назад

    Such an important lecture from one of the pioneers like C. Kane! But very bad filming, the upper half of the screen is almost disappeared when zooming in! So mush obstacles in front of the screen!

  • @mro5858
    @mro5858 4 года назад

    A crash course for the cameraman: Do not move your camera so many times. great presentation

  • @relike868p
    @relike868p 4 года назад

    This should be titled Fractional QHE theory (I) instead of (II) as the third lecture now has the name FQHE (II).

  • @andrewkudriashov1980
    @andrewkudriashov1980 4 года назад

    Thanks a lot for the lecture. Could you give a reference to that 50 pages paper of hard math 28:24? Thank you in advance!

  • @NurVinniboii
    @NurVinniboii 4 года назад

    Would you please upload the lecture notes on your website or so?

  • @user-rq9sz7tb3k
    @user-rq9sz7tb3k 5 лет назад

    Wonderful lecture! Thanks :0)

  • @baharphysics
    @baharphysics 5 лет назад

    He is so handsome and a very outstanding professor❤️