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basic_tools:fourier_transform [2018/03/28 12:59] jakobadmin [Intuitive] |
basic_tools:fourier_transform [2018/05/05 12:23] jakobadmin ↷ Links adapted because of a move operation |
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The Fourier transform is an essential tool that, for example, makes the music format MP3 possible. With the help of the Fourier transform any given music can be split into the frequencies that it is built of. Then, we can remove those that can't be heard by humans and get an equally sounding, but much smaller music file. | The Fourier transform is an essential tool that, for example, makes the music format MP3 possible. With the help of the Fourier transform any given music can be split into the frequencies that it is built of. Then, we can remove those that can't be heard by humans and get an equally sounding, but much smaller music file. | ||
- | Moreover, the Fourier transform is essential in [[theories:quantum_field_theory|Quantum Field Theory]], where we usually expand any given field configuration in terms of it's Fourier modes and then start analyzing it. | + | Moreover, the Fourier transform is essential in [[theories:quantum_field_theory:canonical|Quantum Field Theory]], where we usually expand any given field configuration in terms of it's Fourier modes and then start analyzing it. |
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{{tag>theories:quantum_theory:quantum_mechanics theories:quantum_theory:quantum_field_theory theories:classical_theories:electrodynamics}} | {{tag>theories:quantum_theory:quantum_mechanics theories:quantum_theory:quantum_field_theory theories:classical_theories:electrodynamics}} |