Single qubit and its logic gates

[@essamelnashar1083]

Thanks for putting this together! Really appreciated the animation - it helped me visualize qubit rotation.

[@brunacatarina17]

woow what an interesting video, nice animation! ❤️

[@victorsales4215]

Great vídeo and great animations! Very clear and to the point!

[@cryptoinside8814]

Since you understood this, let me ask… A qubit can represent more than one bit, is it due to its spin direction and angle ? For example, a qubit can spin up or down, therefore the spin up can represent 1 and spin down can represent 0, and thus one qubit can represent one bit. In addition to up/down spin, it can also spin at an angle, for example, 90 degrees, 180 degrees or 270 degrees. So, from this degree distinction, a qubit can represent more bits. Thus, more angles more bit representation. My question is, how do you detect and measure the direction and angle of a qubit ?

[@saswatabasak7746]

Great resource!

[@HARSHBUDHAWANT-z4f]

great video!!

[@pingoovert3692]

Hello, Thanks for the video. Why do the qubits |1>, i|1> , -i|1>, and an infinite number of others, share the same position on the Bloch sphere? And how can they be separated graphically?

[@professornano]

these qubits differ only by a global phase factor, so their Bloch sphere representation is the same.

[@sadiaafrinpurba9179]

Thank you for the great video. Could you please let me know which tools you used for the animation?

[@professornano]

Which ones?

[@sadiaafrinpurba9179]

@@professornano The Pauli X and Hadamard gate operations on the Bloch sphere, for example, the animation at the 9:14 timestamp.

[@professornano]

Matlab

[@Dudeman1729]

At 11:24: Did should the Rx matrix be Ry and vice versa? Also, for Rz, we can factor out the global phase leaving a 1 at the (1,1) matrix element right?

[@B2T7RID2QGLEHH5UZFB0T]

What happens if you smash together 2 entangled particles? What happens when you create a delayed choice quantum eraser that chooses non to function after the delay? What happens if you use qubits like electrons in a typical classical computer?

[@nikhilchettri3304]

excellent

[@eurasian23]

so is H ket 1 equal to delta E?

[@aaqibali9349]

Rx matrix representation should have -ve sign with both off diagonal elements

[@TaS-f1z]

Scusate ma la traduzione dovrebbe essere piú lenta

[@user_375a82]

Math rules implementation - follow the rules - easy.

[@michaelkuhn402]

OMG so far over my head. WOW

[@TaS-f1z]

La traduzione in italiano è troppo veloce e dj conseguenza non si riesce a comprendere

[@clovissimard3099]

Le QUBITAGE ou L'ART de regrouper des QUBITS.

[@adammontgomery7980]

This seems intentionally over-complicated. Bra is a row index into a matrix, and ket is the column index.