Number theoretic braids and global view about anticommutations of induced spinor fields
The anticommutations of induced spinor fields are reasonably well understood locally. The basic objects are 3dimensional lightlike 3surfaces. These surfaces can be however seen as random lightlike orbits of partonic 2surfaces taking which would thus seem to take the role of fundamental dynamical objects. Conformal invariance in turn seems to make the 2D partons 1D objects and number theoretical braids in turn discretizes strings. And it also seems that the strands of number theoretic braid can in turn be discretized by considering the minima of Higgs potential in 3D sense. Somehow these apparently contradictory views should be unifiable in a more global view about the situation allowing to understand the reduction of effective dimension of the system as one goes to short scales. The notions of measurement resolution and number theoretic braid indeed provide the needed insights in this respect. 1. Anticommutations of the induced spinor fields and number theoretical braids The understanding of the number theoretic braids in terms of Higgs minima and maxima allows to gain a global view about anticommutations. The coordinate patches inside which Higgs modulus is monotonically increasing function define a division of partonic 2surfaces X^{2}_{t}= X^{3}_{l}\intersection δ M^{4}_{+/,t} to 2D patches as a function of time coordinate of X^{3}_{l} as lightcone boundary is shifted in preferred time direction defined by the quantum critical submanifold M^{2}× CP_{2}. This induces similar division of the lightlike 3surfaces X^{3}_{l} to 3D patches and there is a close analogy with the dynamics of ordinary 2D landscape. In both 2D and 3D case one can ask what happens at the common boundaries of the patches. Do the induced spinor fields associated with different patches anticommute so that they would represent independent dynamical degrees of freedom? This seems to be a natural assumption both in 2D and 3D case and correspond to the idea that the basic objects are 2 resp. 3dimensional in the resolution considered but this in a discretized sense due to finite measurement resolution, which is coded by the patch structure of X^{3}_{l}. A dimensional hierarchy results with the effective dimension of the basic objects increasing as the resolution scale increases when one proceeds from braids to the level of X^{3}_{l}. If the induced spinor fields associated with different patches anticommute, patches indeed define independent fermionic degrees of freedom at braid points and one has effective 2dimensionality in discrete sense. In this picture the fundamental stringy curves for X^{2}_{t} correspond to the boundaries of 2D patches and anticommutation relations for the induced spinor fields can be formulated at these curves. Formally the conformal time evolution scaled down the boundaries of these patches. If anticommutativity holds true at the boundaries of patches for spinor fields of neighboring patches, the patches would indeed represent independent degrees of freedom at stringy level. The cutoff in transversal degrees of freedom for the induced spinor fields means cutoff n≤ n_{max} for the conformal weight assignable to the holomorphic dependence of the induced spinor field on the complex coordinate. The dropping of higher conformal weights should imply the loss of the anticommutativity of the induced spinor fields and its conjugate except at the points of the number theoretical braid. Thus the number theoretic braid should code for the value of n_{max}: the naive expectation is that for a given stringy curve the number of braid points equals to n_{max}. 2. The decomposition into 3D patches and QFT description of particle reactions at the level of number theoretic braids What is the physical meaning of the decomposition of 3D lightlike surface to patches? It would be very desirable to keep the picture in which number theoretic braid connects the incoming positive/negative energy state to the partonic 2surfaces defining reaction vertices. This is not obvious if X^{3}_{l} decomposes into causally independent patches. One can however argue that although each patch can define its own fermion state it has a vanishing net quantum numbers in zero energy ontology, and can be interpreted as an intermediate virtual state for the evolution of incoming/outgoing partonic state. Another problem  actually only apparent problem has been whether it is possible to have a generalization of the braid dynamics able to describe particle reactions in terms of the fusion and decay of braid strands. For some strange reason I had not realized that number theoretic braids naturally allow fusion and decay. Indeed, cusp catastrophe is a canonical representation for the fusion process: cusp region contains two minima (plus maximum between them) and the complement of cusp region single minimum. The crucial control parameter of cusp catastrophe corresponds to the time parameter of X^{3}_{l}. More concretely, two valleys with a mountain between them fuse to form a single valley as the two real roots of a polynomial become complex conjugate roots. The continuation of lightlike surface to slicing of X^{4} to lightlike 3surfaces would give the full cusp catastrophe. In the catastrophe theoretic setting the time parameter of X^{3}_{l} appears as a control variable on which the roots of the polynomial equation defining minimum of Higgs depend: the dependence would be given by a rational function with rational coefficients. This picture means that particle reactions occur at several levels which brings in mind a kind of universal mimicry inspired by Universe as a Universal Computer hypothesis. Particle reactions in QFT sense correspond to the reactions for the number theoretic braids inside partons. This level seems to be the simplest one to describe mathematically. At parton level particle reactions correspond to generalized Feynman diagrams obtained by gluing partonic 3surfaces along their ends at vertices. Particle reactions are realized also at the level of 4D spacetime surfaces. One might hope that this multiple realization could code the dynamics already at the simple level of single partonic 3surface. 3. About 3D minima of Higgs potential The dominating contribution to the modulus of the Higgs field comes from δ M^{4}_{+/} distance to the axis R_{+} defining quantization axis. Hence in scales much larger than CP_{2} size the geometric picture is quite simple. The orbit for the 2D minimum of Higgs corresponds to a particle moving in the vicinity of R_{+} and minimal distances from R_{+} would certainly give a contribution to the Dirac determinant. Of course also the motion in CP_{2} degrees of freedom can generate local minima and if this motion is very complex, one expects large number of minima with almost same modulus of eigenvalues coding a lot of information about X^{3}_{l}. It would seem that only the most essential information about surface is coded: the knowledge of minima and maxima of height function indeed provides the most important general coordinate invariant information about landscape. In the rational category where X^{3}_{l} can be characterized by a finite set of rational numbers, this might be enough to deduce the representation of the surface. What if the situation is stationary in the sense that the minimum value of Higgs remains constant for some time interval? Formally the Dirac determinant would become a continuous product having an infinite value. This can be avoided by assuming that the contribution of a continuous range with fixed value of Higgs minimum is given by the contribution of its initial point: this is natural if one thinks the situation information theoretically. Physical intuition suggests that the minima remain constant for the maxima of Kähler function so that the initial partonic 2surface would determine the entire contribution to the Dirac determinant. For more details see the chapter Configuration Space Spinor Structure.
