Відео

Are the slides for lesson 09 available anywhere? Thanks.

Bells theorem is based on assumptions that are emotional. Bell called super determinism "implausible" because he feared an emotional concept of "free will" was at stake. As if somehow a "human" is unbounded by causality. A thorough definition of "free will" can define causality as a cause and requirement of the human concept. Alice and Bob are both the same species, educated the same, planned an experiment together in the past, and exist in each other's light cone, yet somehow their actions are completely independent from both each other and the universe..? Those type of assumptions almost begin to become nonsensical when compared to super determinism.

It is an interesting presentation though too brief to understand the principle of the experiment. I am intrigued what is that white statue-like object on the middle shelf on the left side. That is relevant. But the image is to blurred to distinguish it.

great lecture! thanks!

There is nothing inconsistent with realism here. The particle is in a Quantum State and gets reduced. The other particle is in a Quantum State and gets reduced too. One has spin up and the other spin down. The reduction of the Wave Function works the same way everywhere so why would the states be incompatible? I don't understand that. You can assume that the Quantum States are real and that the reduction is a law of Physics that is the same everywhere in our region of spacetime.

The trees here and another tree fell

Sound contrast, go faster

Very insightful…Thank you so much..

great work! Thanks for sharing!

awesome explanation, wish I understood it!

At about 6:40 you start with AxBx + AxBy +AyBx - AyBy but you don't actually explain what Ax or Bx is. Then you factor the terms to (Ax+Ay)Bx + (Ax-Ay)By. But looking at the four terms I would think you'd have to factor it to Ax(Bx + By) + Ay(Bx - By) So I don't understand the nuts and bolts of your explanation. Sorry.

Sorry I am late...

FTL communication hypothetical: Pairs of entangled particles are isolated into chronological order, one set remains on Earth and the other is placed aboad a craft that moves many lightyears out into space. If one outpost made a measurement that specifically mimics binary code to effect the other outpost's particle set, would that not technically transmit the inverse code instantaneously? 🤔

Some lingo that may be useful! 1. Bell State A Bell state in quantum computing is a special type of entangled state where two qubits are linked such that the state of one qubit instantly influences the state of the other, no matter the distance between them. 2. Superposition The principle that a qubit can exist in multiple states (0 and 1) simultaneously, rather than being in a single state like a classical bit. 3. Hadamard Gate A basic operation that transforms a qubit into an equal superposition of its 0 and 1 states, creating a state where the qubit has a 50% chance of being measured as 0 and a 50% chance of being measured as 1. 4. The CNOT (Controlled NOT) Gate
A two-qubit operation where the state of the second qubit (target) is flipped if the first qubit (control) is in the state 1, otherwise, the target qubit remains unchanged. 5. Pauli Operators A set of three basic matrices (Pauli-X, Pauli-Y, and Pauli-Z) used to describe quantum gates that can change the state of a qubit by flipping its state, rotating it, or inverting its phase. In quantum computing, operators like ZZ, XX, and YY perform specific transformations on qubit states, altering their properties such as phase, amplitude, or entanglement.

Hello sir in the last estimation technique, in post processing and plotting I got a value error of "x and y must have same first dimension, but you have shapes (1,) and (9,)" And I have another question that any job id can I use which is already completed in ibm platform in post processing technique ?

How to fix ImportError: cannot import name 'pauli' from 'qiskit.quantum_info'???????? Please help, its been a while

The vocal fry of most American women is becoming unbearable

off topic maybe - if we have perfect encryption the encrypted message contains all the bits of information of the unencrypted message but dilluted into something that the key will let us distillate back to its undilluted former self. now we'd need a few more analogies in case the "dillution" analogy breaks. like the 'diffusion' or the "gradient descent' analogy, or the q bits reaching their Buddah state , all the little Buddah Q bits are in harmony, eyerybody won the 'chaise musicale' game

6:03 what do you mean binary, it will be up to they to decide if they’re non-binary… 😂

Thank you ❤excellent lecture

Hi Derek, great video and initiative! I attempted to implement a 5-qubit GHZ example on IBM Kyoto, but I received a warning that the task would take more than 10m to execute. Surprisingly, when I tried the same on IBM Brisbane, it completed in nearly 50 seconds. This compels me to ask: How can I determine which system is more suitable for a particular task? Many thanks in anticipation.

Great and neat lecture as usual

A very good overview and even I as a mere engineer could grasp some things. Amazing job, thank you!

In Step 3 for the n-qubit GHZ state, I'm getting this error: ValueError: cannot create object arrays from iterator The line causing the error is: job = estimator.run([(qc_transpiled, operators_transpiled_list)])

Will there be a summer school this year?

how can I enable the environment indicator which says (base) or (cwq) before each line?

I am getting errors when I run the codes which was followed with the version 'qiskit 0.11.1' with the latest version of Qiskit 1.x. How to deal with this issue?

At 23:14, about G|A1>=.... "- 2 sqrt(|A_0|/N)" at the 4th row should be "- 2 sqrt(|A_1|/N)" ?

As Mario Bunge used to say quantum marriages are such that they can be separated yet still not divorced. I think that the thing with nonlocality is mere anthropocentric tabu. Nature doesn't care whether the distance between two points seems to us conceptually big or even just nonzero; physically they are as infinitesimally close as necessary if a quanton reaches from one extreme to the other

Classical physics can explain the Bell inequality, and quantum entanglement does not exist.

You repeatedly stated that Bob and Alice are not communicating faster than the speed of light. Of course not. But you dismiss the notion that a faster-than-light interaction between the particles could occur - leaving realism as the default facade. The fabled tachyon particle would go faster than light AND backward in time to sort the states at the time of the collapse of the wave function.

Hang on. So if Alice and bob each have some entangled qubits and Alice makes a measurement that instantly collapses the wave function of the corresponding one with Bob, then i suppose there is a way for Bob to tell, even if only after the fact, exactly when the collapse occurred without receiving information from Allice, right?

This is one of the smoothest sales pitches I have ever seen.

Funny, how even physicists are kinda dim and close-minded. Nothing is impossible given time.

These theories might as well be a philosophy at this point. Focusing On non-realism basically negates any Real awards. Seems all of these are heading the same direction. Fluff of maths and no substance in the real world.

It was that moment that realised: Wat we even talking about? If QM is real, it means it is not. If it is not, then it is real. But, if not real, it is real at the same time. It's a paradox. But, if by " circumstantial opportunity," it is real, and not real, then, "why not"? Fancy mathematical models and equations do not portrait reality or locality. As numbers are not the patriarchal beginning and end. Has anyone seen how, say, number 4 or 12, or 7 really look like? No! Only as Arabic symbols. Therefore, QP/QM as Einstein put it.....we do not understand IT! As Hanes Alfen, the father of plasma physics, put in 1970, exeptens of his Nobel Award: To try to write a grand cosmic drama leads necessarily to myth. To try to let knowledge substitute ignorance in increasingly larger regions of space and time is science.

Thank you so much for the clear explanation, making it easy to follow and working on my end as well. I've now completed my very first job on the IBM quantum platform 🙂! Will definitely continue with this series and enhancing my quantum knowledge.

That vocal fry is so hard to listen to

Nothing ever exists but thank God it's local 😂

Thanks for the great video! One question: when we do X=QuantumRegister(1, "qr"), what is this qubit initial state? Many Thanks!

did anyone understand 12:01

25:25

i waqs wondering if anyone can explain 8:03

Fortunately for Bell, Einstein wasn’t present at his time for providing the counter argument 😅

It does matter how the Qubits are entangled at the beginning as that is precisely what will effect the eventual correlations. See, this is what everyone ignores and partially why the Bell Inequality is not a valid statement.

The Bell inequality is complete rubbish as it neither supports a quantum view nor shows any proof of entanglement. Einstein was likely correct, and the problem needs to be revisited in the search for local hidden variables theories... Clearly, the Nobel committee made a mistake.

Is Sheldon watching this video?

eto boi kemne pore bhai.......................................

cannot import name 'pauli' from 'qiskit.quantum_info' !!!!!!!!!

Amiri