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Table of Contents:
- Why do we need QFT?
- Does anyone understand quantum mechanics?
- Did Einstein believe in quantum physics?
- What kind of math is used in string theory?
- What should I learn before quantum mechanics?
- How long does it take to learn quantum mechanics?
- Is it possible to learn physics on your own?
- What is the quantum theory equation?
Why do we need QFT?
QFT is used in particle physics to construct physical models of subatomic particles and in condensed matter physics to construct models of quasiparticles. QFT treats particles as excited states (also called quanta) of their underlying quantum fields, which are more fundamental than the particles.
Does anyone understand quantum mechanics?
Quantum mechanics must be one of the most successful theories in science. ... Yet the weird thing is that no one actually understands quantum theory. The quote popularly attributed to physicist Richard Feynman is probably apocryphal, but still true: if you think you understand quantum mechanics, then you don't.
Did Einstein believe in quantum physics?
Einstein saw Quantum Theory as a means to describe Nature on an atomic level, but he doubted that it upheld "a useful basis for the whole of physics." He thought that describing reality required firm predictions followed by direct observations.
What kind of math is used in string theory?
For some sub-fields like string pheonomenology, topological string theory, etc., one needs more mathematics - a serious course in algebraic geometry and homological algebra, depending on what your goals are.
What should I learn before quantum mechanics?
In order to study elementary quantum mechanics you must ideally have an understanding of the following mathematical ideas:
- Complex numbers.
- Partial and Ordinary differential equations.
- Integral calculus I-III.
- linear algebra.
- fourier analysis.
How long does it take to learn quantum mechanics?
between 6 and 18 months
Is it possible to learn physics on your own?
Yes, you can study physics by yourself and a lot of people learn things in a casual manner because its so mind stimulating and engaging. The best part is there is no pressure to learn everything within a certain time period or any exams to worry about.
What is the quantum theory equation?
Wavefunctions. A fundamental physical constant occurring in quantum mechanics is the Planck constant, h. A common abbreviation is ħ = h/2π, also known as the reduced Planck constant or Dirac constant. The general form of wavefunction for a system of particles, each with position ri and z-component of spin sz i.
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