Expectation Values of Position & Momentum | Basics of Probability Theory | OPERATORS

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  • Опубліковано 29 гру 2024

КОМЕНТАРІ • 63

  • @FortheLoveofPhysics
    @FortheLoveofPhysics  11 місяців тому

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    • @p.m.rangarajan1055
      @p.m.rangarajan1055 11 місяців тому

      Sir, you have summarized so nicely, the heave of sigh at the end of the lecture was so appropriate. Jokes apart, I don't think anybody has explained this weird stuff so artistically, I am amazed at your effort of making us to understand. No wonder you have chosen the name of channel as "Love of Physics" . Please post many more videos.

  • @Physics_seeker
    @Physics_seeker 11 місяців тому +13

    Best video lectures of quantum mechanics on UA-cam ever🥹 finally jaise mujhe padna tha vaise padhane wale koi teacher mil gye...ur love and passion for physics every day motivates me to understand physics deeply.i can't imagine how much hardwork and time you have to put for making these videos.May Krishna ji bless you sir 😃u are an inspiration for me

  • @p.m.rangarajan1055
    @p.m.rangarajan1055 11 місяців тому +3

    Sir, you have summarized so nicely, the heave of sigh at the end of the lecture was so appropriate. Jokes apart, I don't think anybody has explained this weird stuff so artistically, I am amazed at your effort of making us to understand. No wonder you have chosen the name of channel as "Love of Physics" . Please post many more videos.

  • @tesla6573
    @tesla6573 11 місяців тому +12

    Man these lectures are work of art
    I can't imagine how much work goes in creating these lectures they are some of the best lectures on this subject out there thank you so much 😍😍😍😍😍

    • @FortheLoveofPhysics
      @FortheLoveofPhysics  11 місяців тому

      Thank you so much :)

    • @MikeRicos
      @MikeRicos 3 місяці тому

      So much work and so effortless, lot to learn from here

  • @akanksharoy9542
    @akanksharoy9542 9 місяців тому +1

    I really wish We had Teachers like you sir.... You really made this difficult topic extremely easy to understand..... Thank You so Much sir... Amar pronam neben 🙏🙏🙏

  • @sakshamkankaria915
    @sakshamkankaria915 8 місяців тому +1

    hands down the best channel for quantum mechanics

  • @TheJara123
    @TheJara123 11 місяців тому

    Your limitless passion and preciseness is infectious man!!

  • @ganeshramamurthi9663
    @ganeshramamurthi9663 Місяць тому

    High clarity.. congrats Prof.

  • @thusithawickramanayaka4493
    @thusithawickramanayaka4493 8 місяців тому

    Amazing ... The best series on QM I have ever seen

  • @harshsingh7384
    @harshsingh7384 11 місяців тому +1

    truly the definition of "For the love of physics"

  • @SergeyPopach
    @SergeyPopach 7 місяців тому +4

    missing Bra-Ket notation and properties of inner and outer products

    • @MikeRicos
      @MikeRicos 3 місяці тому

      I hear you but I am also finding it refreshing, his command of integration is comforting. I look forward to seeing how he handles vector fields too!

  • @haroonsagheer5050
    @haroonsagheer5050 11 місяців тому +1

    please don't stop making these videos pleaseeeeeeeee just keep on going till the starting QTF and then start the same discussion and explanations of QFT ❤❤❤❤❤❤

    • @haroonsagheer5050
      @haroonsagheer5050 11 місяців тому

      @@Akash_Saxena_2013 thank you for your great suggestion 💖

  • @mazharali5348
    @mazharali5348 11 місяців тому +1

    Love this lecture series❤

  • @AshwaniMaurya-ph3vs
    @AshwaniMaurya-ph3vs 11 місяців тому +1

    Very nice work sir 😊😊😊

  • @rahulnandi9641
    @rahulnandi9641 6 місяців тому

    You are a great teacher,explainer sir❤

  • @Sciencebuff0003
    @Sciencebuff0003 11 місяців тому +2

    Thanks a lot sir Physics is ❤

  • @christopherkatebe8360
    @christopherkatebe8360 3 місяці тому

    I really enjoyed your lecture and you have helped me in quantum mechanics, kindly I'm asking for the book you are using.

  • @subratasarkhel7505
    @subratasarkhel7505 7 місяців тому

    He is a great teacher of physics

  • @Adithyavarsha.A.S
    @Adithyavarsha.A.S 4 місяці тому

    Thanks a lot for this lecture series

  • @Nifton
    @Nifton 11 місяців тому

    In 28:15, does X depend on time? or the value of full derivative of this product, where term with dx/dt is equal 0 for some reason

  • @gok_dogan
    @gok_dogan 9 місяців тому

    being patient for expectation of understanding Quantum physic
    gives an idea of a particle of what's expectation values

  • @JASMINE-g2u
    @JASMINE-g2u 3 місяці тому

    extremely useful thank you

  • @simegnewtesfaye4455
    @simegnewtesfaye4455 8 місяців тому

    I don't know why your youtube channel hasn't millions subscriber

  • @anandballabhdurgapal
    @anandballabhdurgapal 11 місяців тому

    Excellent command in quany mechanics

  • @shawon265
    @shawon265 11 місяців тому

    Why is =d/dt , but not ? Are they same?

    • @FortheLoveofPhysics
      @FortheLoveofPhysics  11 місяців тому +1

      represents the velocity of the position_average of the system with time. It's more useful to us as it gives us an idea of how the wavepacket evolves with time.

  • @LimbaniMambala
    @LimbaniMambala 5 місяців тому

    you help me alot

  • @expnl
    @expnl 4 місяці тому

    Consider a particle in a infinite square well potential of with two nanometer calculate the expectation value of particle's position in the ground state.

  • @rishukumar7158-h1w
    @rishukumar7158-h1w Місяць тому

    25:04 exp value

  • @labibsoufiane8987
    @labibsoufiane8987 11 місяців тому

    Thank you very much

  • @ajaykulkarni576
    @ajaykulkarni576 11 місяців тому

    Great Work , this is very well done. Is it possible to take some real time use of this? Like how somebody uses this to find average postion and use that average position for a real application.

    • @MikeRicos
      @MikeRicos 3 місяці тому

      My favorite example is a spectrum analyzer for audio. The longer you capture, the better you can pinpoint low-frequency content. If you want to catch really slow frequencies, you have to wait and collect more samples.
      This means there's a tradeoff-you're either focusing on when something happened (time) or what frequencies were present. It’s kind of like position and momentum being conjugate variables. The more you know about one, the less you know about the other.
      When I first realized that measurement in this context *requires* an integral (over time), it finally clicked for me.

  • @siddhant1072
    @siddhant1072 11 місяців тому +1

    Sir please suggest me a good book for atomic and molecular physics

    • @siddhant1072
      @siddhant1072 11 місяців тому +1

      @@Akash_Saxena_2013thanks

  • @1deespace
    @1deespace 7 місяців тому +1

    Sir, I await your playlist on General Relativity.

    • @Ehvan1729
      @Ehvan1729 Місяць тому

      he already posted i think in his channel

  • @divyakumar8147
    @divyakumar8147 Місяць тому

    Thanks sir

  • @pepo2.034
    @pepo2.034 11 місяців тому

    hello sir, please upload the notes for the previous and this video. thank you

  • @Ketan_jindal1125
    @Ketan_jindal1125 3 місяці тому

    Hello sir, if possible can you upload pending lectures
    I've my exam on 18th in IIT indore & I'm getting good with your series..❤

  • @sivasakthisaravanan4850
    @sivasakthisaravanan4850 9 місяців тому

    Instead of doing derivations which are already there in any standard textbook, i think you can better solve problems (for example, problems from JJ Sakrai). Also i didn't see Linear Vector Spaces in the playlist.

    • @Anna-sd4zl
      @Anna-sd4zl 5 місяців тому

      It's because this is a beginner level quantum mechanics no need for introducing vector spaces if we go by introducing vector spaces students need to know some prior functional analysis which isn't necessary for introductory quantum mechanics

  • @bustercam199
    @bustercam199 11 місяців тому

    "The wavefunction contains information but does not have any physical significance".--Hmmm. I see the point you are making there, but not convinced it is true. This is kind of like saying the equation of motion in classical mechanics does not have any physical significance since classical mechanics is a special case of the more general quantum approach.

    • @FortheLoveofPhysics
      @FortheLoveofPhysics  11 місяців тому +3

      By that I mean, The wavefunction is not a physical quantity, but contains information about the average of various physical quantities like position, momentum etc (and later we will see, it also contains information about eigenvalues etc).
      In Classical mechanics however, the equations of motion reveal to us - solutions which are physical quantities, like position, momentum, energy etc

    • @bustercam199
      @bustercam199 11 місяців тому

      Thank you very much for your response and explanation....@@FortheLoveofPhysics

  • @palakkanojia
    @palakkanojia 11 місяців тому +1

    Woww

  • @IsmailKhan-t8z7y
    @IsmailKhan-t8z7y 11 місяців тому

    ❤❤

  • @YossiSirote
    @YossiSirote 11 місяців тому +1

    In general I love you videos and watch everyone of them. At 38:50 dx dx is bad notation, sorry.

    • @FortheLoveofPhysics
      @FortheLoveofPhysics  11 місяців тому +1

      You mean to say, there should be a parentheses?

    • @YossiSirote
      @YossiSirote 11 місяців тому

      @@FortheLoveofPhysics better notation would be if one of the x’s have a prime on it.

    • @FortheLoveofPhysics
      @FortheLoveofPhysics  11 місяців тому +1

      Hmm. I understand what you are saying. Btw are u a mathematician by any chance?

    • @YossiSirote
      @YossiSirote 11 місяців тому

      @@FortheLoveofPhysics I have a masters in math and I am working on a PhD in physics. ☺️

    • @FortheLoveofPhysics
      @FortheLoveofPhysics  11 місяців тому +1

      Awesome:)

  • @rishikeshgautam3822
    @rishikeshgautam3822 4 місяці тому

    Bhai simple English use krna seekho , if u can teach quantum physics to a 10 year old , then only u tend to become a good teacher or else its useless……
    And please dont get offended by the message its just an advice for me……
    When I try to learn something from your videos its like im learning a rocket science 🧪

  • @زينالعابدينماجدمحمد
    @زينالعابدينماجدمحمد 11 місяців тому

    ❤❤❤❤