![Classical computation, Elementary Logic Gates](https://kzhu.ai/wp-content/uploads/2022/02/Physical-Basics-Of-Quantum-Computing-16-scaled-e1644306126980.jpg)
Quantum vs. Classical Logical Operations
Nowadays, there are a large number of various computers. Despite the differences in physical implementations and the purposes...
![Schmidt decomposition](https://kzhu.ai/wp-content/uploads/2022/02/Physical-Basics-Of-Quantum-Computing-11-scaled-e1644118480515.jpg)
Quantum Entanglement
Quantum entanglement acts as a cornerstone for all quantum computations. If one physical system consists of two or...
![Qubit implementation, Polarization of the photon, two-level atom, spin 1/2 system](https://kzhu.ai/wp-content/uploads/2022/01/Physical-Basics-Of-Quantum-Computing-2-724x1024.jpg)
Statistical Aspects of Quantum Mechanics
As of now, it is still unclear whether it is possible to create a so-called quantum computer, a...
![Pure and Mixed States, Ensemble Average](https://kzhu.ai/wp-content/uploads/2022/01/Foundation-Of-Quantum-Mechanics-57-724x1024.jpg)
Quantum Mechanics: Ensembles and Identical Particles
Pure and Mixed Ensemble / State In quantum mechanics, we only talk about average or expectation value for...
![Time dependent Schrödinger equation, energy eigenstates, expected value](https://kzhu.ai/wp-content/uploads/2022/01/Foundation-Of-Quantum-Mechanics-42-724x1024.jpg)
Time Evolution of Quantum States
Time-dependent Schrödinger Equation Time-dependent Schrödinger equations is not an eigenvalue equation, but allowing us to predict the state...
![Commuting Operators](https://kzhu.ai/wp-content/uploads/2022/01/Foundation-Of-Quantum-Mechanics-25-724x1024.jpg)
Quantum Mechanics: Uncertainty Principle and Change of Basis
Commuting Operators Two observables A and B are considered ‘compatible’ if the corresponding operators commute with each other,...
![Electron spin, Sequential Stern-Gerlach Experiments, Bra-ket, matrix, function representations](https://kzhu.ai/wp-content/uploads/2021/12/Foundation-Of-Quantum-Mechanics-14-724x1024.jpg)
Stern-Gerlach Experiments & Dirac Bra-ket Notation
Electron Spin Electron has intrinsic angular momentum called spin that is not associated with its orbital motion. And...
![Finite potential well](https://kzhu.ai/wp-content/uploads/2021/12/Foundation-Of-Quantum-Mechanics-7-724x1024.jpg)
Quantum Mechanics: 1-Dimensional Finite Potential Problems
Finite Potential Well Finite potential well problem is more realistic compared to the infinite potential well. It is...
![Time-independent Schrödinger equation](https://kzhu.ai/wp-content/uploads/2021/12/Foundation-Of-Quantum-Mechanics-2-724x1024.jpg)
Time-Independent Schrödinger Equation
Wave-particle Duality The double-slit experiments show us: particle source P1 : probability pattern when slit 1 is openP2...
![Certificate Quantum Computing Less Formulas More Understanding](https://kzhu.ai/wp-content/uploads/2021/04/Coursera-AZBRDB3NWKLQ-1024x791.jpg)
My #31 course certificate from Coursera
Quantum Computing Less Formulas More UnderstandingSaint Petersburg State University My! Oh! My! quantum computing ! This course is stunning! I...