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On Jun 29, 2011, at 8:28 PM, nick herbert wrote:

Why are you bringing up "Glauber states", Jack?
Just to muddy the waters?

Of course, making imperfect non-strong measurements muddies the waters.

A Glauber state possesses an indefinite photon number.

All entangled states that we know of are Fock states
with a definite photon number.


Really Nick? I think I read there are now entangled laser beams.

In any case, that there may be entangled laser beams does not violate quantum theory as far as I know.

If that could be done, it seems to show a flaw in Stapp's proof and in all the no-cloning no entanglement signaling proofs.

That is, all those proofs at the basis of the black hole information dispute, quantum cryptography etc would be thrown in doubt.

How does this entangled macro-quantum coherent state violate orthodox quantum theory?

|z1)|z'2') + |z2)|z'1')

where

z = sqrt(n)e^i@

So, Nick you agree that orthonormality of the states that are traced over is needed for no-signalling?

Hey Nick what about this?


Laser beams are entangled in space - physicsworld.com
physicsworld.com/cws/article/news/35171 - Cached
Jul 29, 2008 – Breakthrough could allow optical measurements to beat the 'diffraction limit'
?
[PDF] Femtosecond laser–pumped source of entangled photons for quantum ...
www.ece.rochester.edu/source/Roman.../Pan_SPIE_Prague_07.pdf
File Format: PDF/Adobe Acrobat - Quick View
by D Pan - Related articles
We present an experimental setup for generation of entangled-photon pairs via spontaneous parametric down-conversion, based on the femtosecond-pulsed laser. ...
Entangled entanglement in Raman lasers | Eur. Phys. J. D
epjd.edpsciences.org/articles/epjd/abs/2011/05/d09661/d09661.html
Feb 4, 2011 – European Physical Journal D, Molecular, Optical and Plasma Physics, EPJ D.
Demonstrating various quantum effects with two entangled laser beams
arxiv.org › quant-ph - Cached
by B Hage - 2011 - Related articles
Mar 22, 2011 – Abstract: We report on the preparation of entangled two mode squeezed states of yet unseen quality. Based on a measurement of the covariance ...
Quantum-beat lasers as bright sources of entangled sub-Poissonian ...
link.aps.org/doi/10.1103/PhysRevA.78.045801
by X Hu - 2008 - Cited by 14 - Related articles
Oct 8, 2008 – We show that a quantum-beat system with incoherent pump or coherent driving produces an entangled sub-shot-noise laser that operates well ...
LEDs may put lasers out of quantum computing business
arstechnica.com/.../leds-may-put-lasers-out-of-quantum-computing-... - Cached
Jun 10, 2010 – To generate entangled pairs of photons, researchers often use a process called parametric down-conversion. A laser sends its light at a ...
Quantum Entangled Power Distribution
lofi.forum.physorg.com › Physics › Physics General - Cached
4 posts - 2 authors - Last post: Jul 18, 2007
... of almost unlimited power when blended with quantum entangled power ... quantumentangling to power source that powers the lasers with ...
LIGHT-EMITTING DIODES: LED source emits entangled photon pairs ...
www.optoiq.com/index/display/.../laser...9/.../light-emitting-diodes.html
Sep 1, 2010 – This is the first demonstration of a solid-state, electrically driven device consisting of a quantum dot embedded in a semiconductor LED ...
Demonstrating hybrid quantum effects with two entangled laser beams
www.opticsinfobase.org › Conference Papers › EQEC › 2011 › EA
by B Hage - 2011
May 22, 2011 – Optics InfoBase is the Optical Society's online library for flagship journals, partnered and copublished journals, and recent proceedings ...
Spooky Atomic Clocks - NASA Science
science.nasa.gov › ... › Science@NASA Headline News › 2004 - Cached
Apr 6, 2011 – In this laser experiment entangled photons are teleported from one place to another. NASA uses atomic clocks for spacecraft navigation. ...

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