What is Dirac Notation? Kets, Bras, Inner Products & Operators

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  • Опубликовано: 10 фев 2025

Комментарии • 57

  • @FortheLoveofPhysics
    @FortheLoveofPhysics  Месяц назад +3

    🔥Playlist on Introduction to QM: ruclips.net/p/PLRN3HroZGu2mCtdalEmZAM2nr1xBWAtUn&si=7YWyUxDdIIt3fb02
    🔥Playlist on Advanced QM (Here I will add upcoming Lectures): ruclips.net/p/PLRN3HroZGu2m6qv26ZEzBYbAARTOylrP3&si=i9h74GP5dBC66NHu
    🔥My Scanned PDF Lecture Notes: drive.google.com/drive/folders/1Kd2VQxDxCq-x3e0zgx5_jxV3xjWlwpc-?usp=sharing

  • @DineshUpreti-o2e
    @DineshUpreti-o2e Месяц назад +7

    I am a PhD scholar in my first year in the US. I watch, admire, understand and follow your videos and teaching skills. You are one the best physics teachers, I came across. Huge respect and keep continuing.❤

  • @Bitastro
    @Bitastro Месяц назад +7

    Sir your teaching is so awesome that even a high school students can understand your lecture essence...
    Please never stop making videos on Quantum mechanics..
    Your old videos are also gems for us..
    Again thank you sir...

  • @jkromes20
    @jkromes20 Месяц назад +14

    I graduated with my masters a few years ago and no longer use most of my physics knowledge in my work. I love watching just to jog my memory in hopes of keeping my mind sharp. Thank you

    • @sauravpradhan2349
      @sauravpradhan2349 Месяц назад

      What kind of work does a physicist do? (Interestingly asking)

    • @sauravpradhan2349
      @sauravpradhan2349 Месяц назад

      What kind of work does an physicist do? (Interestingly asking)

    • @jkromes20
      @jkromes20 Месяц назад

      @ lots of different research jobs. Plenty of government work and defense contractor work as well. There’s also tons of engineering jobs you qualify for. Personally I’m doing modeling and sim on systems and I don’t really have to do any physics work which to me is super boring. Always looking for new work

  • @N.R.S.Viewpoint1025
    @N.R.S.Viewpoint1025 Месяц назад +3

    Finally you uploaded msc topics 🥹 keep continuing sir. We really want these topics in depth and details. 🙏🏻

  • @Goldslate73
    @Goldslate73 Месяц назад +1

    The analogies with operators and directors were AWESOME, sir. Your energy in the lectures is unmatched. Thank you so much for this.

  • @Bhuvaneshwaran-o3z
    @Bhuvaneshwaran-o3z Месяц назад +3

    Sir, your teaching method is highly commendable; you have greatly assisted me in understanding quantum mechanics. I request that you teach us the next topic on the harmonic oscillator in quantum mechanics.

  • @Johnnycashme
    @Johnnycashme 16 дней назад

    Sir, you have a gift, live the way you share the content and make it digestible

  • @liaquatphysics3167
    @liaquatphysics3167 День назад

    I'm following your old videos on quantum mechanics,they are gem

  • @RupomChakroborty
    @RupomChakroborty Месяц назад +2

    Sir, i am from Bangladesh.. I have seen your many lecture which Helps to prepared myself for exam..Bra and ket is very much important.. Feel happy to see this lecture

  • @physics_enthusiast_Soorya
    @physics_enthusiast_Soorya 25 дней назад

    24:34 Thanks for the funniest example/analogy, Loved it! 🤣

  • @Mujahidkhan-cq7qi
    @Mujahidkhan-cq7qi Месяц назад +2

    Sir I've seen many of your lectures, You're a phenomenal teacher

  • @cosIoannou
    @cosIoannou Месяц назад +1

    Please take the time and effort to produce a series of videos on the subject of ADVANCED PARTICLE PHYSICS hopefully in parallel to your ADVANCED QUANTUM MECHANICS. Maybe this is asking too much, but your contribution is of utmost importance to the scientific community that can not be overstated.

  • @pshc1o3
    @pshc1o3 Месяц назад +3

    Just watched this video, and now my doubts are clear. I was searching for this video from ages. Thank you for sharing this video. Was waiting for this.
    We will love to dive deeper into this. Thank you once again. ❤

  • @GoutamDAS-ls1wb
    @GoutamDAS-ls1wb 19 дней назад

    Great presentation on Dirac notation and very easy to follow. I would love to see your video explanation of Bell's Theorem in the future--something which has been a challenge for me for quite a long time. Thanks in advance.

  • @anindoadhikary4323
    @anindoadhikary4323 Месяц назад +1

    this video is simply outstanding for beginners 💌💌

  • @tizazualemu1817
    @tizazualemu1817 Месяц назад

    Wow I'm really really excited to see this video. Thanks a lot Sir! Please keep making videos quickly

  • @Aimless369
    @Aimless369 Месяц назад +1

    Great as always 🎉

  • @gouravkumartanti
    @gouravkumartanti Месяц назад

    Top-notch introduction to the topic!

  • @akbarrahmatullah6701
    @akbarrahmatullah6701 Месяц назад

    Very good. Your style is very amenable. Do consider doing some follow on examples on BRA's and KET's taken from Quantum Mechanics.

  • @nDreaw12
    @nDreaw12 Месяц назад +1

    Great as always!!!!

  • @YUSUFMUSTAFEYUSUF-q6x
    @YUSUFMUSTAFEYUSUF-q6x Месяц назад

    Much appreciated, really it is a very perfect explanations thanks sir

  • @xxunbornlifexx
    @xxunbornlifexx 4 дня назад

    GRACIASSS!!! 🔥❤‍🔥🔥

  • @SureshKumar-jo7rs
    @SureshKumar-jo7rs Месяц назад

    We were looking forward for you sir

  • @drvksau
    @drvksau Месяц назад

    Sir, happy new year, very informative. I found bra and ket notation most useful when we do hermitian operation because all operators in qm are hermitian and we don't have to use long integration and *

  • @Curious65
    @Curious65 Месяц назад

    Outstanding Sirrr❤

  • @sureshapte7674
    @sureshapte7674 6 дней назад

    excellent introduction . Is it not possible to bring out the distinction between ket and the corresponding bra using linear algebra? e.g. Bra is an operator which acts on Ket from left or right and so on?

  • @wilylunaalvarez7314
    @wilylunaalvarez7314 26 дней назад

    awesome!

  • @pankaj.706
    @pankaj.706 Месяц назад

    This topic is highly confusing thanks for making vedios. Kindly solved problem special on it

  • @samuelmr677
    @samuelmr677 Месяц назад

    Thank you sir ❤❤❤ 🥺🥺🥺

  • @Sidpatel630
    @Sidpatel630 Месяц назад

    Thankyou so much sir

  • @liaquatphysics3167
    @liaquatphysics3167 День назад

    Sir please upload more videos in advance quantum mechanics

  • @Nidhi-c9j
    @Nidhi-c9j Месяц назад

    Thanku sir

  • @AbhishekNath-f3w
    @AbhishekNath-f3w Месяц назад

    sir❣

  • @capistor1
    @capistor1 Месяц назад

    Please cover density matrix and quantum algorithms and circuits. I have its exam on 10th January. 🙏

  • @ahsanhabib4953
    @ahsanhabib4953 Месяц назад

    Love from Bangladesh

  • @khushkumar5192
    @khushkumar5192 Месяц назад

    Sir 🎉🎉

  • @drvksau
    @drvksau Месяц назад

    20.56. You say one vector cannot be rep. by another if they are orthogonal. But in a basis one all psi are orthonormal, but one can be written ad a combination of all other psi

    • @FortheLoveofPhysics
      @FortheLoveofPhysics  Месяц назад +1

      The general state can be written as a linear combination of its basis. But one basis cannot be written in terms of another basis. Its like a vector can be written as a linear com of i,j,k but j cannot be written in terms of k

    • @drvksau
      @drvksau Месяц назад

      @FortheLoveofPhysics ya ok

    • @tanmoythakuria4818
      @tanmoythakuria4818 Месяц назад

      ​@@FortheLoveofPhysics yes they are linearly independent. One element of basis cannot obtained by multiplying constant with another one .

  • @dusasandas5854
    @dusasandas5854 23 дня назад

    Sir, as you said inner product represents the probability amplitude for evolvement of a state to another, now for a normalised ket is it going to never change its state?

    • @FortheLoveofPhysics
      @FortheLoveofPhysics  22 дня назад +1

      I guess u mean orthonormal kets. In that case, yes

    • @dusasandas5854
      @dusasandas5854 2 дня назад

      ​@@FortheLoveofPhysics
      So does it mean that the measurement can't disturb such states of the system????

    • @FortheLoveofPhysics
      @FortheLoveofPhysics  День назад

      @ External perturbation can change a state (for eg, an incident photon can make an electron go from ground state to excited state)

  • @thebattlevault
    @thebattlevault Месяц назад

    Sir more ones like the same ones

  • @pak_developer
    @pak_developer Месяц назад

    I have my own theory and mathematical formula for quantum mechanics. But i am confused what should i do now.... Can you guide me if possible so.

  • @HangingQueen
    @HangingQueen Месяц назад +1

    Use smart board for better experience for the viewers

  • @MusahidKhan-w9e
    @MusahidKhan-w9e Месяц назад

    I am student of B's physics

  • @HangingQueen
    @HangingQueen Месяц назад +1

    Use smart board

  • @JoseFerreira-qx5jh
    @JoseFerreira-qx5jh Месяц назад

    Sorry for the question but Why you changed your look?