Quantum Quandaries Essay

1626 words - 7 pages

Quantum Quandaries

by Heath Miller
December 8th 2012

What if you could transfer a file faster than the speed of light on a connection with air-tight security? You could connect to a computer anywhere around the world in the blink of an eye and never have to worry about malicious activity. It seems impossible, right? Not necessarily. It could actually be done by using a quantum network. A true quantum network would be much faster than any connection we could implement with our current telecommunications hardware. In fact, a signal transferred over a true quantum connection wouldn’t take time to transfer whatsoever. It would literally arrive instantly, and would be sent using ...view middle of the document...

Eventually, and spontaneously, the electron will return to its ground state by emitting the photon. Certain crystal structures increase the likelihood that the photon will split into two photons, both of them with longer wavelengths than the original. Keep in mind that a longer wavelength means a lower frequency, and thus less energy. The total energy of the two photons must equal the energy of the photon originally fired from the laser (conservation of energy). When the original photon splits into two photons, the resulting photon pair is considered entangled” (davidjarvis.ca, N.P.).
The history of Quantum entanglement is an impressive stream of brilliant minds, hard work, and creativity. The development of quantum mechanics began around the seventeenth century when scientists proposed a wave theory about light. The next massively influential stage of its development was the study of black body radiation. The main players in this were: Gustav Kirchhoff, Ludwig Boltzmann, Max Planck, and Wilhelm Wien. Planck perfected the theory for black body radiation around 1896. That theory became Planck’s Law and set the course of quantum theory’s development. Some of the most impacting principles of quantum mechanics are the theory of relativity, Wave-particle duality, and quantum field theory.
The principle we’ll talk about here is quantum entanglement. It was initially researched for a critical paper in 1935 by Albert Einstein, Nathan Rosen, and Boris Podolsky. They determined that the current quantum description of the universe could not be considered complete. Later that year, Erwin Schrödinger coined “Verschränkung.” This is a term that means “entanglement.” He also gave us a great visual example the quantum concept when he came up with his infamous thought experiment involving alternate reality felines. In 1964, John Bell presented the mathematical proof that allowed experiments to rule out hidden variables. It showed that entanglement could be explained through purely local effects unless the proof was violated. Alain Aspect, a French physicist, later violated the proof in the strongest test done thus far. This confirmed that nonlocal effects do exist.
This led Charles Bennett and Gilles Brassard to come up with an idea for quantum cryptography in 1984. It would use a photon’s state changes to make an encrypted key. Six years later, Bennett reported the first test model for key distribution using quantum mechanics. Bennett later proposed that the principles of quantum entanglement could theoretically teleport quantum information from one particle to another. This theory was verified in 1997 when it was tested by Anton Zeilinger. Anton set a record in 2007 for distance of controlled entanglement of photons. The record was 144 kilometers. In that same year Chao-Yang Lu set the record of entangled particles to six. One of the most recent leaps forward was in 2010. As reported in 75 Years of Entanglement, “Researchers observe new kinds...

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