Friday, January 31, 2014

Recent findings advance the field of quantum biology...


Elsevier: Discovery of Quantum Vibrations in “Microtubules” Inside Brain Neurons Corroborates Controversial 20-Year-Old Theory of Consciousness

The theory, called "orchestrated objective reduction" ('Orch OR'), was first put forward in the mid-1990s by eminent mathematical physicist Sir Roger Penrose... and prominent anesthesiologist Stuart Hameroff, M.D... They suggested that quantum vibrational computations in microtubules were "orchestrated" ("Orch") by synaptic inputs and memory stored in microtubules, and terminated by Penrose "objective reduction" ('OR'), hence "Orch OR." Microtubules are major components of the cell structural skeleton.

Orch OR was harshly criticized from its inception, as the brain was considered too "warm, wet, and noisy" for seemingly delicate quantum processes. However, evidence has now shown warm quantum coherence in plant photosynthesis, bird brain navigation, our sense of smell, and brain microtubules. The recent discovery of warm temperature quantum vibrations in microtubules inside brain neurons by the research group led by Anirban Bandyopadhyay, PhD, at the National Institute of Material Sciences in Tsukuba, Japan (and now at MIT), corroborates the pair's theory and suggests that EEG rhythms also derive from deeper level microtubule vibrations. In addition, work from the laboratory of Roderick G. Eckenhoff, MD, at the University of Pennsylvania, suggests that anesthesia, which selectively erases consciousness while sparing non-conscious brain activities, acts via microtubules in brain neurons... 

An important new facet of the theory is introduced. Microtubule quantum vibrations (e.g. in megahertz) appear to interfere and produce much slower EEG "beat frequencies."...


See also...

Biosens Bioelectron. 2013 Sep 15:  Atomic water channel controlling remarkable properties of a single brain microtubule: correlating single protein to its supramolecular assembly

Sahu S, Ghosh S, Ghosh B, Aswani K, Hirata K, Fujita D, Bandyopadhyay A

Abstract   
Microtubule nanotubes are found in every living eukaryotic cells; these are formed by reversible polymerization of the tubulin protein, and their hollow fibers are filled with uniquely arranged water molecules. Here we measure single tubulin molecule and single brain-neuron extracted microtubule nanowire with and without water channel inside to unravel their unique electronic and optical properties for the first time. We demonstrate that the energy levels of a single tubulin protein and single microtubule made of 40,000 tubulin dimers are identical unlike conventional materials. Moreover, the transmitted ac power and the transient fluorescence decay (single photon count) are independent of the microtubule length. Even more remarkable is the fact that the microtubule nanowire is more conducting than a single protein molecule that constitutes the nanowire. Microtubule's vibrational peaks condense to a single mode that controls the emergence of size independent electronic/optical properties, and automated noise alleviation, which disappear when the atomic water core is released from the inner cylinder. We have carried out several tricky state-of-the-art experiments and identified the electromagnetic resonance peaks of single microtubule reliably. The resonant vibrations established that the condensation of energy levels and periodic oscillation of unique energy fringes on the microtubule surface, emerge as the atomic water core resonantly integrates all proteins around it such that the nanotube irrespective of its size functions like a single protein molecule. Thus, a monomolecular water channel residing inside the protein-cylinder displays an unprecedented control in governing the tantalizing electronic and optical properties of microtubule.

+


Nature Communications 5, 09 January 2014: Non-classicality of the molecular vibrations assisting exciton energy transfer at room temperature     

Edward J. O’Reilly & Alexandra Olaya-Castro

...we have provided theoretical evidence that vibration-assisted exciton transport in prototype dimers, representative of interband-like transitions in a variety of photosythetic light-harvesting antennae, can exploit non-trivial quantum phenomena that cannot be reproduced by any classical counterpart, namely, non-classical fluctuations of collective pigment motions. Given that a variety of transport and sensing phenomena in biomolecules are known to involve non-equilibrium vibrational motion, our findings have broad implications for the field of quantum effects in biology as they suggest that investigating the non-classical nature of molecular fluctuations harnessed in these processes could be the key to reveal a role for truly non-trivial quantum features.
Discovery of Quantum Vibrations in “Microtubules” Inside Brain Neurons Corroborates Controversial 20-Year-Old Theory of Consciousness - See more at: http://www.elsevier.com/about/press-releases/research-and-journals/discovery-of-quantum-vibrations-in-microtubules-inside-brain-neurons-corroborates-controversial-20-year-old-theory-of-consciousness?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%#sthash.8WkxCloA.dpuf

Thursday, January 9, 2014

Nature: A millisecond pulsar in a stellar triple system

S.M,Ransom, et al.

Gravitationally bound three-body systems have been studied for hundreds of years1, 2 and are common in our Galaxy3, 4. They show complex orbital interactions, which can constrain the compositions, masses and interior structures of the bodies5 and test theories of gravity6, if sufficiently precise measurements are available. A triple system containing a radio pulsar could provide such measurements, but the only previously known such system, PSRB1620-26 (refs 7, 8; with a millisecond pulsar, a white dwarf, and a planetary-mass object in an orbit of several decades), shows only weak interactions. Here we report precision timing and multiwavelength observations of PSRJ0337+1715, a millisecond pulsar in a hierarchical triple system with two other stars. Strong gravitational interactions are apparent and provide the masses of the pulsar (1.4378(13) , where is the solar mass and the parentheses contain the uncertainty in the final decimal places) and the two white dwarf companions (0.19751(15) and 0.4101(3) ), as well as the inclinations of the orbits (both about 39.2°). The unexpectedly coplanar and nearly circular orbits indicate a complex and exotic evolutionary past that differs from those of known stellar systems. The gravitational field of the outer white dwarf strongly accelerates the inner binary containing the neutron star, and the system will thus provide an ideal laboratory in which to test the strong equivalence principle of general relativity.

Friday, January 3, 2014

We said 'NSA will use this' without the benefit of an inside source or access to Edward Snowden's cache of documents. Today, the Washington Post confirms, based on Snowden leaks, what we speculated in NSA Will Use This II and III, that the NSA would pursue developments in quantum computing...

NSA seeks to build quantum computer that could crack most types of encryption

Moreover, the article confirms what we had suggested as an alternate title of NSA Will Use This III: This Will Defeat NSA...

“The application of quantum technologies to encryption algorithms threatens to dramatically impact the US government’s ability to both protect its communications and eavesdrop on the communications of foreign governments,” according to an internal document provided by Snowden.

Tuesday, October 1, 2013

NSA Will Use This III


Alternate headline: This will defeat NSA

New developments in quantum computing to fuel the cryptographic arms race...

Science News: Light breaks up to cloak gaps in time
Method could hide messages without sender's knowledge

NatureA temporal cloak at telecommunication data rate

Through advances in metamaterials—artificially engineered media with exotic properties, including negative refractive index1, 2, 3—the once fanciful invisibility cloak has now assumed a prominent place in scientific research4, 5, 6, 7, 8, 9, 10, 11, 12, 13. By extending these concepts to the temporal domain14, investigators have recently described a cloak which hides events in time by creating a temporal gap in a probe beam that is subsequently closed up; any interaction which takes place during this hole in time is not detected15. However, these results are limited to isolated events that fill a tiny portion of the temporal period, giving a fractional cloaking window of only about 10−4 per cent at a repetition rate of 41kilohertz (ref. 15)—which is much too low for applications such as optical communications. Here we demonstrate another technique for temporal cloaking, which operates at telecommunication data rates and, by exploiting temporal self-imaging through the Talbot effect, hides optical data from a receiver. We succeed in cloaking 46 per cent of the entire time axis and conceal pseudorandom digital data at a rate of 12.7gigabits per second. This potential to cloak real-world messages introduces temporal cloaking into the sphere of practical application, with immediate ramifications in secure communications.


Science NewsQuantum teleportation approaches the computer chip

The techniques laid out in two new studies are major steps toward developing quantum computers and ensuring secure communication over quantum networks...

NatureDeterministic quantum teleportation of photonic quantum bits by a hybrid technique

Quantum teleportation1 allows for the transfer of arbitrary unknown quantum states from a sender to a spatially distant receiver, provided that the two parties share an entangled state and can communicate classically. It is the essence of many sophisticated protocols for quantum communication and computation2, 3, 4, 5. Photons are an optimal choice for carrying information in the form of ‘flying qubits’, but the teleportation of photonic quantum bits6, 7, 8, 9, 10, 11 (qubits) has been limited by experimental inefficiencies and restrictions. Main disadvantages include the fundamentally probabilistic nature of linear-optics Bell measurements12, as well as the need either to destroy the teleported qubit or attenuate the input qubit when the detectors do not resolve photon numbers13. Here we experimentally realize fully deterministic quantum teleportation of photonic qubits without post-selection. The key step is to make use of a hybrid technique involving continuous-variable teleportation14, 15, 16 of a discrete-variable, photonic qubit. When the receiver’s feedforward gain is optimally tuned, the continuous-variable teleporter acts as a pure loss channel17, 18, and the input dual-rail-encoded qubit, based on a single photon, represents a quantum error detection code against photon loss19 and hence remains completely intact for most teleportation events. This allows for a faithful qubit transfer even with imperfect continuous-variable entangled states: for four qubits the overall transfer fidelities range from 0.79 to 0.82 and all of them exceed the classical limit of teleportation. Furthermore, even for a relatively low level of the entanglement, qubits are teleported much more efficiently than in previous experiments, albeit post-selectively (taking into account only the qubit subspaces), and with a fidelity comparable to the previously reported values.

Nature: Deterministic quantum teleportation with feed-forward in a solid state system

Engineered macroscopic quantum systems based on superconducting electronic circuits are attractive for experimentally exploring diverse questions in quantum information science1, 2, 3. At the current state of the art, quantum bits (qubits) are fabricated, initialized, controlled, read out and coupled to each other in simple circuits. This enables the realization of basic logic gates4, the creation of complex entangled states5, 6 and the demonstration of algorithms7 or error correction8. Using different variants of low-noise parametric amplifiers9, dispersive quantum non-demolition single-shot readout of single-qubit states with high fidelity has enabled continuous10 and discrete11 feedback control of single qubits. Here we realize full deterministic quantum teleportation with feed-forward in a chip-based superconducting circuit architecture12, 13, 14. We use a set of two parametric amplifiers for both joint two-qubit and individual qubit single-shot readout, combined with flexible real-time digital electronics. Our device uses a crossed quantum bus technology that allows us to create complex networks with arbitrary connecting topology in a planar architecture. The deterministic teleportation process succeeds with order unit probability for any input state, as we prepare maximally entangled two-qubit states as a resource and distinguish all Bell states in a single two-qubit measurement with high efficiency and high fidelity. We teleport quantum states between two macroscopic systems separated by 6mm at a rate of 104s−1, exceeding other reported implementations. The low transmission loss of superconducting waveguides is likely to enable the range of this and other schemes to be extended to significantly larger distances, enabling tests of non-locality and the realization of elements for quantum communication at microwave frequencies. The demonstrated feed-forward may also find application in error correction schemes.

Other developments...

Extreme-Tech: MIT discovers a new state of matter, a new kind of magnetism

Oregon State UniversityElectronics advance moves closer to a world beyond silicon

Sunday, September 30, 2012

Entanglement Between Photons that have Never Coexisted


E. Megidish, A. Halevy, T. Shacham, T. Dvir, L. Dovrat, H. S. Eisenberg

(Submitted on 19 Sep 2012)

The role of the timing and order of quantum measurements is not just a fundamental question of quantum mechanics, but also a puzzling one. Any part of a quantum system that has finished evolving, can be measured immediately or saved for later, without affecting the final results, regardless of the continued evolution of the rest of the system. In addition, the non-locality of quantum mechanics, as manifested by entanglement, does not apply only to particles with spatial separation, but also with temporal separation. Here we demonstrate these principles by generating and fully characterizing an entangled pair of photons that never coexisted. Using entanglement swapping between two temporally separated photon pairs we entangle one photon from the first pair with another photon from the second pair. The first photon was detected even before the other was created. The observed quantum correlations manifest the non-locality of quantum mechanics in spacetime.

Wednesday, August 29, 2012

A quick scan of five years of high frequency trading...

NanexThe Rise of the HFT Machines

Soon to be clocking in at an all-time high speed via micro-wave relays...

ZeroHedgeFrom Chicago To New York And Back In 8.5 Milliseconds

And utilizing the drone industry  to cross the pond...

WiredRaging Bulls - How Wall Street Got Addicted to Light-Speed Trading


“They’re doing amazing things now with drones,” Dziejma said.

“Drones?”

Sure, he said. A fleet of unmanned, solar-powered drones carrying microwave relay stations could hover at intervals across the Atlantic.

And with these developments, new opportunities for insider traders...

Science NewsQuantum teleportation leaps forward