Mark, Bob
You caught my attention with the reference to polaritons. There is a group at Stanford, previously mentioned, which is at the forefront of the SPP field https://web.stanford.edu/group/yamamotogroup/research/EP/EP_main.html Fran will take notice of the reference to microcavities. Axil thinks this can happen at 1200C and that may be a stretch, but it is far more likely than nickel fusion. Exciton-Polariton Condensation: Microcavity exciton-polaritons are half-light, half-matter quantum quasi-particles, resulting from the strong light-matter coupling in a combined structure of quantum wells and cavity photon cavity . The strong light-matter coupling in the microcavity system exhibits anti-crossing behavior as a split to two polariton branches: upper polaritons (UPs) and lower polaritons (LPs)... Think about the implications of polaritons alone being gainful. This would explain why and how a reaction has positive feedback IR light gain - with no gamma or radioactive transmutation, and also why one would not want to calibrate a "dummy" reactor, if one did not want to reveal polaritons as the active modality - since the polaritons can only kick in when the IR becomes intense with incandescence. From: Bob Cook Mark-- My suggestion is that the physics of hot fusion like in the sun is not going to be very applicable to the understanding of LENR solid state systems where there are more than 2 or 3 particles connected in a coherent QM system. It is my conclusion that with respect to doing detailed calculations of the details of LENR, it will be hapless. The system is too complex. Only the qualitative understanding of the basic parameters that effect QM system energy and angular momentum states will be possible. Empirical correlations of results of tests will come about and be pretty good predictors of the way various parameters (temperature, grain size, magnetic fields, resonant frequencies, heat conductivity, magnetic moments, electric fields, etc.) that can be measured affect heat production. Better theory of spin coupling and other forms of energy sharing in a coherent system will evolve and understanding of the empirical data will improve. The hot fusion modeling for few body systems will only be a minor player in the understanding of LENR. The acceptance of instantaneous information sharing in the coherent system, via the QM wave function or some other non-material construct, without speed of light delays, will become common theory to handle the instantaneous changes that occur in the coherent system to produce measurable responses or changes therein. A better relation between the QM parameter of spin for a system, its connection to the spin of individual particles and the relation of spin energy to rest mass that can be measured will be important. Dynamic measurements of mass and spin in coherent systems are needed to feed the empirical understanding and energy coupling mechanisms. Maybe the so called quantum computer will be able to do complex system quantum mechanics. Hopefully this better explains my previous comment. Bob Cook ----- Original Message ----- From: MarkI-ZeroPoint <mailto:zeropo...@charter.net> Hi Bob, I've been very busy for the last year and have not had the time to partake in the lively discussions in the Collective, and with the added publicity that vortex-l has had (thanks to Mark Gibbs and others) the quality of the discussions has definitely increased significantly. we've also lost some dear souls since LENR started heating up, and they are missed. L Thanks for chiming in. Yes, I would agree that the size of the coherent system is an important key, and that that size would also dictate what kind of photons get absorbed vs which make it outside the bulk matter and into grad-student bulk matter! When you say, ". is not the answer to the cold fusion question.", are you saying that a LENR system doesn't involve coherency across many, many atoms length??? I did not get the impression that the referenced article was restricting it's hypothesis to two-body systems. -Mark From: Bob Cook Mark-- The size of the coherent system is the key. Many bodies share the distribution of energy and total coherent system energy changes. Two body systems like that heretofore considered in hot fusion physics (and extended to all solid state physics by many) are not the answer to the cold fusion question in most cases IMHOI. Bob Cook ----- Original Message ----- From: MarkI-ZeroPoint <mailto:zeropo...@charter.net> Just some food for Collective thought. as to why no dead grad students. "Perfect energy-feeding into strongly coupled systems and interferometric control of polariton absorption" http://www.nature.com/nphys/journal/vaop/ncurrent/full/nphys3106.html Abstract The ability to drive a system with an external input is a fundamental aspect of light-matter interaction. The key concept in many photonic applications is the 'critical coupling' condition1, 2: at criticality, all the energy fed to the system is dissipated within the system itself. Although this idea was crucial to enhance the efficiency of many devices, it was never considered in the context of systems operating in a non-perturbative regime. In this so-called strong-coupling regime, the matter and light degrees of freedom are mixed into dressed states, leading to new eigenstates called polaritons3, 4, 5, 6, 7, 8, 9, 10. Here we demonstrate that the strong-coupling regime and the critical coupling condition can coexist; [emphasis mine] >>>> in such a strong critical coupling situation, all the incoming energy is converted into polaritons. <<<< A general semiclassical theory reveals that such a situation corresponds to a special curve in the phase diagram of the coupled light-matter oscillators. In the case of a system with two radiating ports, the phenomenology shown is that of coherent perfect absorption (CPA; refs 11, 12), which is then naturally understood in the framework of critical coupling. Most importantly, we experimentally verify polaritonic CPA in a semiconductor-based intersubband-polariton photonic crystal resonator. This result opens new avenues in polariton physics, making it possible to control the pumping efficiency of a system independent of the energy exchange rate between the electromagnetic field and the material transition. -mark iverson
