Quantum Computing and Evolution?

The unique capability of quantum mechanics to evolve alternative possibilities in parallel is appealing and over the years a number of quantum algorithms have been developed offering great computational benefits. Systems coupled to the environment lose quantum coherence quickly and realization of schemes based on unitarity might be impossible. Recent discovery of room temperature quantum coherence in light harvesting complexes opens up new possibilities to borrow concepts from biology to use quantum effects for computational purposes. While it has been conjectured that light harvesting complexes such as the Fenna-Matthews-Olson (FMO) complex in the green sulfur bacteria performs an efficient quantum search similar to the quantum Grover's algorithm the analogy has yet to be established. See: Evolutionary Design in Biological Quantum Computing

The Bloch sphere is a representation of a qubit, the fundamental building block of quantum computers.

Quantum Light Harvesting Hints at Entirely New Form of Computing

See:

• Landauer's principle
• Thanksgiving 
• Irreversibility and Heat Generation in the Computing Process

Spintronics made easy

Spintronics (a neologism for "spin-based electronics"), also known as magnetoelectronics, is an emerging technology which exploits the quantum spin states of electrons as well as making use of their charge state. The electron spin itself is manifested as a two state magnetic energy system. The discovery of giant magnetoresistance in 1988 by Albert Fert et al. and Peter Grünberg et al. independently is considered as the birth of spintronics.

David Awschalom explains how the spin of the electron could be exploited in completely new types of electronic circuits If you are new to spintronics - or if you are wondering what all the excitement is about -- David Awschalom of the University of California, Santa Barbara provides a fantastic introduction to the field and explains how electron spin could be harnessed to create even denser computer memories and even quantum computers. In this video interview Awschalom also outlines the challenges that must be overcome before we see the next generation of spintronics devices and explains how he is addressing some of these in his lab.

TEDxCaltech - David Awschalom - Spintronics: Abandoning Perfection for the Quantum Age"

 See Also:

• How liquid crystals handle conflicting boundary conditions -http://backreaction.blogspot.ca/2012/12/how-liquid-crystals-handle-conflicting.html

It's an older article but definitely worth the read in context of spintronics technology.

At I.B.M.’s research lab in San Jose, Calif., Stuart S. P. Parkin is working on a device that could increase chip data storage by 10 to 100 times.

Redefining the Architecture of Memory

 

By JOHN MARKOFF

Published: September 11, 2007

Spintronics

Spin, which is assigned a value of "up" or "down," is a quantum-mechanical property of electrons. Like charge, spin can be encoded with binary data. See:The Current Spin on Spintronics

Spintronics (a neologism for "spin-based electronics"), also known as magnetoelectronics, is an emerging technology which exploits the quantum spin states of electrons as well as making use of their charge state. The electron spin itself is manifested as a two state magnetic energy system.

The discovery of giant magnetoresistance in 1988 by Albert Fert et al. and Peter Grünberg et al. independently is considered as the birth of spintronics.

Racetrack memory

Racetrack memory is an experimental non-volatile memory device under development at IBM's Almaden Research Center by a team led by Stuart Parkin.[1] In early 2008 a 3-bit version was successfully demonstrated.[2] Developed successfully, racetrack would offer storage density higher than comparable solid-state memory devices like Flash RAM and similar to conventional disk drives, but with much higher read/write performance. It is one of a number of new technologies vying to become a "universal memory" in the future.

Spintronics Devices ResearchRacetrack Memory, Spin Injectors, Magnetic Tunnel Transistors, and a host of more exotic spintronic designs take us beyond the realm of the simple GMR spinvalve.



See Also:

Moore's Law Endangered?

Magnetic Monopoles in Spin Ice See my comment there for computerize correlation defining elementary particle creation.

Comment in full below until post recognition.

Steven:Or anyone involved in spintronics?

That thought of spintronics crossed my mind as well.

In a "parabox situation" it is important to understand that quantum gravity history as it might be used, might be used to define some "emergent principle as a algorithm written" may also be written as "quantum gravity signal" for computerized situations in numerical standardization relations?

I mean you have to have some format in which to translate the theoretical toward the truest versions of a "vision of the math." What ever that may be.

Best,

Moore's Law Endangered?

Moore's Law(wikipedia 28 May 2006)

Moore's law is the empirical observation that the complexity of integrated circuits, with respect to minimum component cost, doubles every 24 months[1].

Clifford, in writing the brief article of interest, he relays another article here for consideration.

Spotting the quantum tracks of gravity wavesby Zeeya Merali

Their calculations show that as the gravitational force from a passing wave slightly changes the momentum of the entangled particles, it should knock them out of their pristine spin state. In principle, that effect could be detected, but it is so small that no one has found a way to pick it up, explains Yeo. He and his team suggest that the effect could be amplified using a process called "entanglement swapping", which allows pairs of particles that have never been in contact to become entangled. "Spin and momentum become entangled to a higher degree so that changing one produces an even larger change in the other," says quantum physicist Chris Adami at the Jet Propulsion Laboratory in Pasadena, California.

While it may have been some time that now passes it is worth the mention again that "spintronics" has this role to play, yet, in gravity probe B, the spherical valuations would only now make sense on a large cosmological plate?

So by analogy usng Grvaity probe B we gain perspective onthe relevances of change within that gravitational radiation?

A black hole is an object so massive that even light cannot escape from it. This requires the idea of a gravitational mass for a photon, which then allows the calculation of an escape energy for an object of that mass. When the escape energy is equal to the photon energy, the implication is that the object is a "black hole".

Yet, is is of some concern that when we travel down to such microstates, that we are able in fact to keep a pure and clean picture of what existed once, and had gone through the changes in "spin orientation and momentum?"

If the boundariesof the blackhole are indeed collapsing to supersymmetrcial proportions, then what use photon information if it cannot describe for us something that is going on inside?

#18

The distinction is important, since the term gravity waves is primarily used in fluid dynamics to describe fluid oscillations that have gravity as their restoring force

I noticed link did not work and I was looking for confirmation as to your statement. Not that you need it :)

So just to confirm source, I reiterate it here again. If any a expert, would they like to clean up reference(does it need to be)?

(Gravitational waves are sometimes called gravity waves, but this term should be reserved for a completely different kind of wave encountered in hydrodynamics.)

Also, "the effect" while in the throes of gravity waves just to clarify the thinking(ocean waves and such), effects of Hulse and Taylor different, while the entanglement issue speaks to energy release is defined by photons passage of time as is?

What is the fastest way for it to get here without being influenced. Lagrangian perspective[Edwin F Taylors least Action Principal] and "tunnel transport" and effects of lensing?

Of course thinking about the nature of the types of high energy level photon(gamma) and what they can traverse through, may be confusing, yet distinctive?

One of the physical device limitations described by Dr. Packan is that transistor gates, as further miniaturization is pursued, will become so thin that quantum mechanical “tunneling” effects will arise. These quantum effects will create leakage current through the gate when the switch is “off” that is a significant fraction of the channel current when the device is “on”. This could reduce the reliability of the transistors resulting in increased cost and decreased availability of more powerful chips