Quantum Theory Documentary

Quantum mechanics (QM -- also known as quantum physics, or quantum theory) is a branch of physics which deals with physical phenomena at nanoscopic scales where the action is on the order of the Planck constant. It departs from classical mechanics primarily at the quantum realm of atomic and subatomic length scales. Quantum mechanics provides a mathematical description of much of the dual particle-like and wave-like behavior and interactions of energy and matter. Quantum mechanics provides a substantially useful framework for many features of the modern periodic table of elements including the behavior of atoms during chemical bonding and has played a significant role in the development of many modern technologies.

In advanced topics of quantum mechanics, some of these behaviors are macroscopic (see macroscopic quantum phenomena) and emerge at only extreme (i.e., very low or very high) energies or temperatures (such as in the use of superconducting magnets). For example, the angular momentum of an electron bound to an atom or molecule is quantized. In contrast, the angular momentum of an unbound electron is not quantized. In the context of quantum mechanics, the wave--particle duality of energy and matter and the uncertainty principle provide a unified view of the behavior of photons, electrons, and other atomic-scale objects.

The mathematical formulations of quantum mechanics are abstract. A mathematical function, the wavefunction, provides information about the probability amplitude of position, momentum, and other physical properties of a particle. Mathematical manipulations of the wavefunction usually involve bra--ket notation which requires an understanding of complex numbers and linear functionals. The wavefunction formulation treats the particle as a quantum harmonic oscillator, and the mathematics is akin to that describing acoustic resonance. Many of the results of quantum mechanics are not easily visualized in terms of classical mechanics. For instance, in a quantum mechanical model the lowest energy state of a system, the ground state, is non-zero as opposed to a more "traditional" ground state with zero kinetic energy (all particles at rest). Instead of a traditional static, unchanging zero energy state, quantum mechanics allows for far more dynamic, chaotic possibilities, according to John Wheeler.

Comments

FM Synthesis

FM synthesis is short for frequency modulation synthesis . Simply put, FM synthesis uses one signal called, the “modulator” to modulate the pitch of another signal, the “carrier”, that’s in the same or a similar audio range. This creates brand new frequency information in the resulting sound, changing the timbre without the use of filters. FM synthesis can create both harmonic and inharmonic sounds. To synthesize harmonic sounds, the modulating signal must have a harmonic relationship to the original carrier signal. As the amount of frequency modulation increases, the sound grows progressively complex. It was discovered in the 1967 experiments of John Chowning at Stanford University. At first, Chowning was using complex waveforms to modulate the pitch of simple sine waves. This resulted in supersonic signals at frequencies over a million Hertz. [FISEA 1988] Workshop: John Chowning, Zack Settel & Ernst Bonis – FM-Synthesis/Psycho-acoustics. Yamaha...

Genesis P-Orridge

Last month, industrial performance artist and provocateur Genesis P-Orridge performed her final concert at London venue Heaven. It wasn’t just a farewell to her audience, but also a means for Genesis P-Orridge to bid farewell to herself. Recently she told the New York Times that the course of her chronic myelomonocytic leukaemia meant that she had “less optimistically, a year, maybe six months. And then I’m on the downward slope to death”. As with the Fall’s Mark E Smith in January this year, it’s difficult to imagine the UK music underground without this constant fixture. The death was confirmed by Genesis's daughters, Genesse and Caresse, the musician and artist, who had been battling leukaemia for two-and-a-half years, was 70. “It is with very heavy hearts that we announce the passing of our beloved father, Genesis Breyer P-Orridge,” Caresse and Genesse P-Orridge said in a statement shared online. “S/he will be laid to rest h/er other half, Jaqueline “Lady Jaye” Brey...

Generative Music

Generative music is a term popularized by Brian Eno to describe music that is ever-different and changing, and that is created by a system. Eno is also credited with inventing the phrase “ambient music,” first using the term to describe his 1978 release Ambient 1: Music for Airports . A generative piece sounds different every time it is played. The first indications of generative music date from the composer Johann Philipp Kirnberger in 1757, he wrote a work entitled "Musikalisches Wrfelspiel" based on a series of templates written by him, which he modified according to the result of rolling dice. Generative Music 1 is the name of a floppy disk (composed by Brian Eno in 1996). The work, made up of twelve pieces, was not recorded in an audio format, but in '.skp' format, and therefore, to be able to listen to it you would need the Sseyo Koan player software, a real-time music generation system. As the Sseyo Koan is an algorithmic generative software, each...

Search This Blog