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Topic: Holographic principle

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	Creation - Holographic Universe - Crystalinks
		The holographic and universal information bounds are far beyond the data storage capacities of any current technology, and they greatly exceed the density of information on chromosomes and the thermodynamic entropy of water (c).
		The holographic principle contends that an analogue of this visual magic applies to the full physical description of any system occupying a 3-D region: it proposes that another physical theory defined only on the 2-D boundary of the region completely describes the 3-D physics.
		The holographic equivalence can allow a difficult calculation in the 4-D boundary spacetime, such as the behavior of quarks and gluons, to be traded for another, easier calculation in the highly symmetric, 5-D anti-de Sitter spacetime.
	www.crystalinks.com /holouniverse1.html (5110 words)

	Unsolved Problems in Physics and (Site not responding. Last check: 2007-10-10)
		Description: The holographic principle is that the state of a physical system in a region of space can be given a complete description on the boundary of that region.
		According to the holographic principle then, the entropy of a system is bounded by the area of it's boundary, instead of the volume of the region.
		In fact, according to the holographic principle the limit of the amount of entropy possible in a region of space is 1/4 the area of it's boundary in Planck units.
	www.personal.psu.edu /users/j/m/jmp456/problem12.htm (184 words)

	Holographic Principle
		Such principle is now embraced by some physicists, who claim that it will become part of the foundations of new physics, from which quantum theory and relativity may both deduced as special cases.
		The holographic and universal information bounds are far beyond the data storage capacities of any current technology, and they greatly exceed the density of information on chromosomes and the thermodynamic entropy of water (see diagram (c), Figure 02).
		The holographic equivalence can allow a difficult calculation in the 4-D boundary space-time, such as the behaviour of quarks and gluons, to be traded for another, easier calculation in the highly symmetric, 5-D space-time or vice versa.
	universe-review.ca /R15-22-holographic.htm (972 words)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal (Site not responding. Last check: 2007-10-10)
		The holographic principle is a speculative conjecture about quantum gravity theories, proposed by Gerard 't Hooft and improved and promoted by Leonard Susskind, claiming that all of the information contained in a volume of space can be represented by a theory which lives in the boundary of that region.
		The strong holographic principle states that the information which an outside observer can derive from the surface of a fl hole is directly proportional to the surface area of the event horizon.
		The weak holographic principle states that the all information entering the event horizon of a fl hole is encoded on the surface of the event horizon of that fl hole and is proportional to the surface area of the event horizon.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=holographic_principle (727 words)

	Comparison between Karl Pribram's "Holographic Brain Theory" and ore conventional models of neuronal ...
		Light scattered off the object (now in the holographic domain) is transformed to the non-holographic (image) domain by the lens of the camera (which does an effective inverse Fourier transform) by focusing the image on the photographic film.
		For the holograph, laser light is shined through the holographic plate (picking up the holographic information from the plate) and becomes incident on the eye which does a transformation (focuses) which forms an image on the retina.
		The holographic nature of the light incident on the lens is shown in figure 4.
	www.acsa2000.net /bcngroup/jponkp (7071 words)

	HUMANTRUTH - Br19. The Holographic Dimension
		The holograph, or hologram, filled gaps in my understanding in a way most unconsciously satisfying to the postconscious but difficult for the conscious precisely to put its finger on.
		I can only say that if the mind's processes were seen as a jig-saw puzzle from which one vital piece was missing, the holographic principle, presenting itself as that missing piece in the jigsaw, fell into place easily and without question.
		If the holographic principle is accepted, perhaps its most significant features are (1) that the normal range of holograms in the human head is capable of recording an almost infinite amount of information, a capacity which was hard to explain in terms of hard-wiring.
	www.humantruth.org /holog19.htm (1189 words)

	h o l o q u e s t . c o m \| w e l c o m e
		Because holographic images have depth of field, information that is digitized into the computer language of zero' s and one' s can be layered deep inside a hologram.
		However, from my own research and the excellent reviews on holographic data storage that have been published, from the technological and commercial point of view, one gets the impression that holographic technologies, though very fascinating, had not reached a stage of maturity sufficient to pose a threat to other types of memories.
		Holographic data storage, as a new emerging technology, is confronted by challenges and factors that will impede its progress, which range from technical limitations, competition from other technologies, and unreceptive markets.
	www.enteleky.com /holography/intro.html (660 words)

	faqs1_a1
		In principle, it is possible that the universe has undergone a semi-infinite number of cycles in its past during which the volume increases from cycle to cycle.
		Contrary to some suggestions, the holographic principle does not impose a quantitative constraint on the number of cycles, as described here.
		According to the principle, the maximal entropy at a bounce would be obtained by producing one fl hole per Hubble volume, where here the relevant Hubble volume is approximately the Planck scale.
	www.physics.princeton.edu /~steinh/cyclicFAQS/index.html (4862 words)

	Robustness of Holographic Optical Traps Against Phase Scaling Errors
		Holographic optical traps use phase-only holograms to form large arrays of optical traps from a single input laser beam.
		Placing a wavefront-shaping hologram in a plane conjugate to the input pupil transforms the single optical tweezer into a pattern of holographic optical traps whose number, three-dimensional configuration, relative and absolute intensities, and mode structure all are encoded in the hologram.
		In conventional holographic optical traps whose DOE is illuminated with collimated light, the entire hierarchy of conjugate fields is focused into the same plane.
	www.physics.nyu.edu /~dg86/robust1b (2255 words)

	Journal of Theoretics
		Their holographic model received dramatic experimental support in 1982 when a research team led by physicist Alain Aspect in Paris demonstrated that the web of subatomic particles that compose our physical universe, possesses what appears to be an undeniable “holographic” property.
		Their research, which suggests the existence of a previously undetectable subtle radiation linked to physical DNA may support the hypothesis of an intact energy field containing relevant organismal information that is capable of being coupled to an optical imaging device.
		Marcer (1998) has established, using Huygen's principle of waves and secondary sources, that any waves reverberating through the universe remain coherent with the waves at the source, and are thus sufficient to serve as the reference to decode the holographic information of any quantum hologram emanating from remote locations.”
	www.journaloftheoretics.com /Articles/2-5/Benford.htm (2765 words)

	The Holographic Principle and M-theory (Site not responding. Last check: 2007-10-10)
		Assertion 1 The first assertion of the Holographic Principle is that all of the information contained in some region of space can be represented as a `Hologram' - a theory which `lives' on the boundary of that region.
		For example, if the region of space in question is the DAMTP Tearoom, then the holographic principle asserts that all of the physics which takes place in the DAMTP Tearoom can be represented by a theory which is defined on the walls of the Tearoom.
		Assertion 2 The second assertion of the Holographic Principle is that the theory on the boundary of the region of space in question should contain at most one degree of freedom per Planck area.
	www.damtp.cam.ac.uk /user/gr/public/holo (910 words)

	The Holographic Principle by 't Hooft and Susskind
		The holographic conjecture, based on the Bekenstein's bounds and the Bekenstein-Hawking entropy of the fl hole, has been first proposed by Gerard 't Hooft and discussed in more detail by Lenny Susskind: http://arXiv.org/abs/gr-qc/9310026 http://arXiv.org/abs/hep-th/9409089 The holographic principle has become one of the leading principles in (stringy) quantum gravity.
		No, the holographic principle states more than just the fact that the future is determined by the equations of motion.
		The Holographic Principle, Boundaries, Observers and The S-Matrix
	www.lns.cornell.edu /spr/2001-06/msg0033712.html (566 words)

	HRA: Holographic Repatterning, Can It Change Your Life?
		Through Holographic Repatterning (HR), she identified the pattern and established that it stemmed from her conception.
		HR is based on the principle of resonance, and facilitates a shift in our frequency wave patterns so that we resonate with what is energising and life-giving instead of negative and life-depleting.
		The principle is bio-feedback and what it means is that the body and mind respond at a purely unconscious level.
	www.holographic.org /buchanan.html (2143 words)

	A Novel Concept (Site not responding. Last check: 2007-10-10)
		The 1970's paradigm was the result of the combined hypotheses and conjectures of Karl Pribram and David Bohm, among others,3 which were nominally based on the holographic method discovered in 1947 by Dennis Gabor, recipient of the 1971 Nobel Prize in Physics.
		Furthermore, the holonomic brain theory of Pribram and Bohm is essentially a quantum theory while the holographic principle of Leonard Susskind and Nobel laureate Gerard 't Hooft is a quantum gravity theory.
		Four dimensional (4-D) holographic (holonomic) 5 image events that exhibit periodic movement in space through time are created as and reconstructed from higher order energy holograms that include the time dimension.
	www.cox-internet.com /hermital/book/holopara1-2.htm (1260 words)

	Universal College of Reflexology Certification and Training - Applying the Holographic Principle
		At a highly symbolic level, the holographic principle that "every piece contains the whole" can be seen in the cellular structure of all living bodies.
		The single cell begins to undergo a process of self-replication, and soon is transformed into a tight little ball of many different cells, which ultimately take on the form of nerve, bone, muscle and connective-tissue cells and migrate to their appropriate positions to work together as a whole human body.
		This holographic principle when extended to the human body as a whole and Reflexology in particular may be applied like this.
	www.universalreflex.com /article.php?story=20040315140815688 (369 words)

	Articles on Holography
		Simple holograms demonstrate the principles of light and wave theory, as well as teach photonics problem-solving skills to students.
		New technology that uses "holographic optical tweezers" to trap and move objects the size of a protein (five nanometers) or a collection of cells (100 microns) may have large implications in medicine and other fields.
		The kiosks use holographic keyboards that float in the air.
	www.holokits.com /holography_news.htm (501 words)

	Three Roads to Quantum Gravity (Site not responding. Last check: 2007-10-10)
		177 the [strong] holographic principle states that the most succinct description that can be given of the part of the world that lies on the other side of any surface is actually a description of how its image evolves on that surface.
		177 according to the weak holographic principle, space is nothing but a way of talking about all the different channels of communication that allow information to pass from observer to observer.
		178 the [weak] holographic principle is the ultimate realization of the notion that the world is a network of relationships.
	home.att.net /~leefrank/booknots/book112.html (609 words)

	Citebase - On the Holographic Principle in a Radiation Dominated Universe
		On the Holographic Principle in a Radiation Dominated Universe
		The holographic principle is studied in the context of a n+1 dimensional radiation dominated closed Friedman-Robertson-Walker (FRW) universe.
		A new purely holographic bound is postulated which restricts the sub-extensive entropy associated with the Casimir energy.
	citebase.eprints.org /cgi-bin/citations?id=oai:arXiv.org:hep-th/0008140 (218 words)

	Holographic Principle Explained
		I came across this article a couple of days ago that discussed the concept of the holographic principle, although it was overall correct in its idea it was very poorly explained and could leave a regular reader confused about this extraordinary theory.
		To understand the core of the holographic principle, you must understand that the mirror image is not “information” as they call it, it is merely an “illusion” formed by looking at a certain part of the surface area (the “information”) at a certain angle.
		All we can do really is try to use the holographic principle to determine a theoretical position of the point of the universe which is responsible for the “illusions” and send them some driving directions to our place in the sky.
	unano.org /2007/01/27/holographic-principle-explained (483 words)

	Book Review - The Holographic Universe
		When this holographic film is viewed at certain angles, then the information that is displayed on one angle of the film can transform into something completely different.
		Talbot begins to stretch the scientific theory of the Holographic universe to explain the disillusionment of schizophrenics, the cosmic ‘oneness’ of ancient central American shamans and the occurrence of lucid dreaming.
		Bohm suggest that the human mind and the holographic record of the past already exist in the same domain, a simple ‘shift’ in the focus of one’s attention is all that is needed to access the past.
	www.belowtopsecret.com /thread133545/pg1 (1349 words)

	The Daily Californian
		UC Berkeley physics professor, Raphael Bousso, is trying to break down the mysteries of the universe with a concept called the holographic principle.
		The holographic principle uses the optical concept of holograms to try to visually explain the complex idea.
		Information in the holographic principle means the entire collection of matter the chip is made of.
	www.dailycal.org /article.php?id=20361 (698 words)

	Astronomy Picture of the Day 4-30-02
		The Holographic Principle, yet unproven, states that there is there is a maximum amount of information content held by regions adjacent to any surface.
		The principle derives from the idea that the Planck length, the length scale where quantum mechanics begins to dominate classical gravity, is one side of an area that can hold only about one bit of information.
		The term "holographic" arises from a hologram analogy where three-dimension images are created by projecting light though a flat screen.
	www.freerepublic.com /focus/f-chat/675541/posts (614 words)

	[No title] (Site not responding. Last check: 2007-10-10)
		The holographic principle states that the entropy inside a region is bounded by the area of the boundary of that region.
		We argue that it can be derived from the dynamical holographic principle which states that the dynamics of a system in a region should be described by a system which lives on the boundary of the region.
		This last principle can be valid in general relativity because the ADM hamiltonian reduces to the surface term.
	www.hsc.wvu.edu /sop/compchem/mdpi/entropy/htm/e3020066.htm (179 words)

	Deflating Vacuum Energy
		Because a fl hole is the highest entropy object that can exist in a given volume of spacetime, some have argued that the maximum number of quantum states available in any region of spacetime is also proportional to its surface area, instead of its volume, as in normal field theory.
		A boundary surface takes up less space than the volume within it, so "the holographic principle tells you that there are far fewer quantum states in the theory" than a quantum field theory would suggest, says Thomas.
		He estimates that the number and energy of the holographic states should generate the observed value of Lambda, but there is no holographic theory for a universe like ours to use for an exact calculation.
	focus.aps.org /story/v10/st7 (529 words)

	Edge: SMOLIN VS. SUSSKIND: THE ANTHROPIC PRINCIPLE
		His contributions to physics include the discovery of string theory, the string theory of fl hole entropy, the principle of "fl hole complementarity", the holographic principle, the matrix description of M-theory, the introduction of holographic entropy bounds in cosmology, the idea of an anthropic string theory "landscape".
		A is any form of the Anthropic Principle of Principle of Mediocrity, together with assumptions about priors, proabability distrbutions on universes etc, plus our own existence, that leads to the conclusion that we should observe B. B is that galaxies have formed.
		There I argue that the mediocrity principle cannot yield falsifiable predictions because it depends on the definition of the ensemble within which our civilization is taken to be typical as well as on assumptions about the probability distribution.
	www.edge.org /3rd_culture/smolin_susskind04/smolin_susskind.html (12074 words)

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