Notes Observable An operator is said to be an observable if all eigen kets form basis in the whole state space.In quantum mechanics, an observable refers to a physical quantity or ...
Notes Dirac correspondence principle The Dirac correspondence principle, also known as Dirac's theorem, is a fundamental concept in the bridge between quantum mechanics and classical mechanics. It describes how the quantum mechanical …
Notes Schrodinger picture The Schrödinger picture is one of the two fundamental ways to describe the behaviour of quantum systems in quantum mechanics, the other being the Heisenberg picture. These two pictures provide ...
Notes Smooth Barrier In quantum mechanics, a smooth barrier refers to a situation where a particle encounters a barrier or potential energy region that changes gradually and smoothly rather than abruptly. This concept ...
Notes Uncertainity in measurement In quantum mechanics, the Heisenberg Uncertainty Principle states that certain pairs of physical properties, like position and momentum or energy and time, cannot be measured with arbitrary precision …
Notes Interaction picture We focus on how different parts of a quantum system interact with each other, while kind of ignoring the other stuff that's going on.Here's why the interaction picture is ...
Notes Heisenberg picture in Quantum Mechanics The Heisenberg picture is one of two commonly used formulations in quantum mechanics, the other being the Schrödinger picture. In the Heisenberg picture, the observables (operators) evolve with time …
Notes Number operator In quantum mechanics, the number operator is an important mathematical operator associated with quantized systems, particularly those with discrete energy levels. The number operator is used to find …
