arXiv subjects

James Lindesay

Publications and source records attributed to James Lindesay.

At least 19 recordsLinked to original sources

arXiv2024

A Plausible Path Towards Unification of Interactions via Gauge Fields Consistent with the Equivalence Principle-II

An extension of the Lorentz group that includes generators $Γ^μ$ carrying a space-time index has been previously demonstrated to \emph{explicitly} construct the Minkowski metric \emph{within} the internal group space as a consequence of the non-vanishing commutation relations between those generators. Fields that transform under representations of this extended group can fundamentally incorporate microscopic causality as a crucial property of physical fields. The first part of this exploration focused on the fundamental representation fermions (which satisfy the Dirac equation), and explored additional internal symmetries associated with those fermions. Any interactions that could result from those symmetries were demonstrated to necessarily be consistent with gravitational equivalence under curvilinear extensions of the (abelian) space-time translations. The first boson representation of this algebra is the focus of this second paper. In particular, the equations of motion for a group of massive vector bosons are degenerate with that of massless vector bosons, allowing them to unitarily mix to form physical states with differing masses and dynamics. Thus, this representation exhibits a potential for enhancing insights into the standard modeling of electro-weak mixing of bosons. The various spinors that represent these bosons exhibit kinematic factors, and those factors are related during unitary mixing to generate the resultant physical states. For this reason, analytic and kinematic coincidences associated with known electro-weak masses will be explored for insights into possible predictive relationships between their masses and those of this first causal boson representation. To conclude, a plausible model will be constructed using examined coincidences for critique and insights into the potential viability of the approach.

physics.gen-ph↗

arXiv2024

A Plausible Path Towards Unification of Interactions via Gauge Fields Consistent with the Equivalence Principle-I

An extension of the Lorentz group to include generators $Γ^μ$ carrying a space-time index is demonstrated to explicitly construct the Minkowski metric within the internal group space as a consequence of the non-vanishing commutation relations between those generators. For fundamental representation states, this group forms a subgroup of GL(4) consistent with Dirac fermions. Since the representations inherently pair particles with anti-particles, the generators define a minimal group for transforming fields that fundamentally satisfy microscopic causality, thus treating causality as a crucial physical property. For fermions transforming under GL(4), beyond three spin matrices and $Γ^0$ there are 12 additional hermitian generators. It is demonstrated that a closed invariance subgroup of SU(2)$\times$U(1) for fermions of defined mass can be constructed. However, any closed subgroup of SU(3) transformations necessarily mix the mass-SU(2) eigenstates. The first part of exploration of group representations presented in this paper examines associating global invariance to these additional generators. The extended group requires that any charges arising due to establishment of internal local symmetries necessarily exhibit geometric equivalence under curvilinear transformations on the parameterization of space-time translations. Furthermore, a formulation for mixing the degenerate massless fermions (which explicitly cannot manifest SU(3) symmetry or charges) while maintaining Lorentz invariance, is presented.

physics.gen-ph↗

arXiv2021

Unitary Kinematic Mixing of Electro-Weak Bosons

In the standard model, electro-weak bosons are developed as gauge-fields initially satisfying an SU(2) $\times$ U(1) local symmetry mediating interactions with a multi-component field. This symmetry gets broken when the component of the field associated with the (scalar) Higgs boson acquires a non-vanishing expectation value, generating masses for weak vector bosons (W$^+$,W$^-$,Z) as well as a massless photon (A) which couples to electric charge. Beyond an expression relating the masses of the W and Z bosons, there are few predictions concerning further relationships involving the Higgs mass or mixing angle. In this paper, kinematic relationships between unitarily mixed momentum-space spinors (supplemental to standard electro-weak modeling) will be developed. These relationships expressed in terms of kinematic invariants are shown to be consistent with current measured results.

physics.gen-ph↗

arXiv2020

Non-Perturbative Unitary Mixing of Bosonic Causal Spinors

The fundamental fermion representations of causal spinor fields have previously been demonstrated to describe free Dirac fermions, as well as incorporate \emph{only} the observed degrees of freedom for local gauge invariance. In this paper, the first non-trivial boson representations of causal spinors will be presented. The general unitary mixing of degenerate bosonic spinors will be developed, and then applied to electro-weak bosons satisfying appropriate kinematic constraints. The resulting mass ratios are seen to be consistent with reported measured values for these bosons.

physics.gen-ph↗

arXiv2019

Radiations From Geometries Using Painlevé-Gullstrand Coordinates

The principle of equivalence is used to examine covariant descriptions of quantum phenomena within the global exterior of geometries described using Painlevé- Gullstrand coordinates, which are everywhere non-singular away from their center. The differences between the descriptions of observers stationary within the curvilinear geometry and those in a locally-flat freely-falling system that is momentarily at rest are found to depend only on local proper accelerations, becoming vanishingly small for increasingly distant observers. Away from the horizon, the local detections of outgoing massless radiations from the ground state of the freely-falling observers are found to be consistent with those of Rindler observers accelerating in flat space-time.

hep-th↗

arXiv2018

Use of Genome Information-Based Potentials to Characterize Human Adaptation

As a living information and communications system, the genome encodes patterns in single nucleotide polymorphisms (SNPs) reflecting human adaption that optimizes population survival in differing environments. This paper mathematically models environmentally induced adaptive forces that quantify changes in the distribution of SNP frequencies between populations. We make direct connections between biophysical methods (e.g. minimizing genomic free energy) and concepts in population genetics. Our unbiased computer program scanned a large set of SNPs in the major histocompatibility complex region, and flagged an altitude dependency on a SNP associated with response to oxygen deprivation. The statistical power of our double-blind approach is demonstrated in the flagging of mathematical functional correlations of SNP information-based potentials in multiple populations with specific environmental parameters. Furthermore, our approach provides insights for new discoveries on the biology of common variants. This paper demonstrates the power of biophysical modeling of population diversity for better understanding genome-environment interactions in biological phenomenon.

q-bio.PE↗

arXiv2017

An Alternative Approach to Unification of Gauge and Geometric Interactions

The algebra of the generators for infinitesimal transformations of the $Γ={1 \over 2}$ representation of causal spinor fields (Dirac fields) \emph{explicitly} constructs the Minkowski metric \emph{within} the internal group space as a consequence of non-vanishing commutation relations between generators that carry a single space-time index. This representation is a subgroup of the set of all of the generators that transform under the group GL(4). The sixteen hermitian generators of GL(4) include the three angular momentum spin matrices, a matrix proportional to the Dirac matrix $γ^0$, and 12 additional matrices that have the same number of degrees of freedom as SU(3)$\times$SU(2)$\times$U(1). In this paper, the construction of linearly independent internal SU(3) and SU(2) local symmetry groups for the causal spinor fields is demonstrated to necessarily involve the CKM mixing of three sets of the SU(3) eigenstates as related to the SU(2) eigenstates.

physics.gen-ph↗

arXiv2016

A Model of Unified Gauge Interactions

Linear spinor fields are a generalization of the Dirac field that have direct correspondence with the known physics of fermions, inherent causality properties in their most fundamental constructions, and positive mass eigenvalues for all particle types. The algebra of the generators for infinitesimal transformations of these fields directly constructs the Minkowski metric \emph{within} the internal group space as a consequence of non-vanishing commutation relations between generators that carry space-time indexes. In addition, the generators have a fundamental matrix representation that includes Lorentz transformations within a group that unifies internal gauge symmetries generated by a set of hermitian generators for SU(3)$\times$SU(2)$\times$U(1), and nothing else. The construction of linearly independent internal SU(3) and SU(2) symmetry groups necessarily involves the mixing of three generations of the mass eigenstates labeling the (massive) representations of the linear spinor fields. The group algebra also provides a mechanism for the dynamic mixing of massless particles of differing "transverse mass" eigenvalues conjugate to the affine parameter labeling translations along their light-like trajectories. The inclusion of a transverse mass generator is necessary for group closure of the extended Poincare algebra, but its eigenvalue must vanish for massive particle representations. A unified set of space-time group transformation operations along with internal gauge group symmetry operations for linear spinor fields will be demonstrated in this paper.

physics.gen-ph↗

arXiv2013

The Foundations of Genodynamics: The Development of Metrics for Genomic-Environmental Interactions

Single nucleotide polymorphisms (SNPs) represent an important type of dynamic sites within the human genome. These common variants often locally correlate into more complex multi-SNP haploblocks that are maintained throughout generations in a stable population. The information encoded in the structure of common SNPs and SNP haploblock variation can be characterized through a normalized information content (NIC) metric. Such an intrinsic measure allows disparate regions of individual genomes and the genomes of various populations to be quantitatively compared in a meaningful way. Using our defined measures of genomic information, the interplay of maintained statistical variations due to the environmental baths within which stable populations exist can be interrogated. We develop the analogous "thermodynamics" characterizing the state variables for genomic populations that are stable under stochastic environmental stresses. Since living systems have not been found to develop in the absence of environmental influences, we focus on describing the analogous genomic free energy measures in this development. The intensive parameter describing how an environment drives genomic diversity is found to depend inversely upon the NIC of the genome of a stable population within that environment. Once this environmental potential has been determined from the whole genome of a population, additive state variables can be directly related to the probabilities of the occurrence of given viable SNP based units (alleles) within that genome. This formulation allows the determination of both population averaged state variables as well as the genomic energies of individual alleles and their combinations. The determination of individual allelic potentials then should allow the parameterization of specific environmental influences upon shared alleles across populations in varying environments.

q-bio.GN↗

arXiv2013

Linear Spinor Fields in Relativistic Dynamics

Linear spinor fields are a generalization of the Dirac field that have transparent cluster decomposability properties needed for classical correspondence of relativistic quantum systems. The algebra of these fields directly incorporate gravitation within a group that unifies the dynamics of the same number of additional hermitian carriers of quantum numbers as there are gauge fields in SU(3)$\times$SU(2)$\times$U(1). They also provide a mechanism for the dynamic mixing of massless neutrinos using a "transverse mass" conjugate to the affine parameter labeling translations along its light-like trajectory, consistent with those in the standard model.

hep-th↗

arXiv2011

Global Causal Structure of a Transient Black Object

A singularity-free and spherically symmetric transient black object whose center remains always timelike, yet directly manifests a trapped region, has been constructed and numerically implemented. The exterior geometry is shown to be similar to that of a long-lived transient black hole, with a few subtle differences. The large-scale global structure of the geometry is examined through the construction of a conformal diagram, which exhibits no event horizon and bears resemblance to that of a Minkowski spacetime. Since there is no singularity within the geometry, the evolution of the exchange of information between timelike observers, including those that fall through the trapped region, can be directly explored. The dynamics of generic "standard" communications, as well as entangled communications, is exhibited through both t-versus-r and conformal spacetime diagrams.

gr-qc↗

arXiv2011

Self-consistent solutions of canonical proper self-gravitating quantum systems

Generic self-gravitating quantum solutions that are not critically dependent on the specifics of microscopic interactions are presented. The solutions incorporate curvature effects, are consistent with the universality of gravity, and have appropriate correspondence with Newtonian gravitation. The results are consistent with known experimental results that indicate the maintenance of the quantum coherence of gravitating systems, as expected through the equivalence principle.

gr-qc↗

arXiv2011

A New Biophysical Metric for Interrogating the Information Content in Human Genome Sequence Variation: Proof of Concept

Various studies have shown an association between single nucleotide polymorphisms (SNPs) and common disease. We hypothesize that information encoded in the structure of SNP haploblock variation illumines molecular pathways and cellular mechanisms involved in the regulation of host adaptation to the environment. We developed and utilized the normalized information content (NIC), a novel metric based on SNP haploblock variation. We found that all SNP haploblocks with statistically low information content contained putative transcription factor binding sites and microRNA motifs. We were able to translate a biophysical, mathematical measure of common variants into a deeper understanding of the life sciences through analysis of biochemical patterns associated with SNP haploblock variation. We submit that this new metric, NIC, may be useful in decoding the functional significance of common variation in the human genome and in analyzing the regulation of molecular pathways involved in host adaptation to environmental pathogens.

physics.bio-ph↗

arXiv2010

Penrose Diagram for a Transient Black Hole

A Penrose diagram is constructed for a spatially coherent black hole that smoothly begins an accretion, then excretes symmetrically as measured by a distant observer, with the initial and final states described by a metric of Minkowski form. Coordinate curves on the diagram are computationally derived. Causal relationships between space-time regions are briefly discussed. The life cycle of the black hole demonstrably leaves asymptotic observers in an unaltered Minkowski space-time of uniform conformal scale.

gr-qc↗

arXiv2009

Quantum Behaviors and Dynamic Horizons

Geometries with horizons offer insights into relationships between general relativity and quantum physics. Quantum mechanics constrains relationships between kinematic parameters and the coordinates describing the dynamics. Example quantum behaviors on space-times with dynamic horizons will be demonstrated, with an emphasis on examining co-gravitating quantum systems. Finally, the large scale causal structure of a multi-fluid cosmology that can describe dynamic coherent aspects of the universe as a whole will be presented.

gr-qc↗

arXiv2009

Causal Structures of Dynamic Black Holes

Dynamic space-times, especially those manifesting horizons, provide useful laboratories for examining how macroscopic quantum behaviors consistently co-generate gravitational phenomena. For this reason, the behaviors and large-scale causal structures of spatially coherent dynamic black holes will be explored in this presentation. Geodesic motions on an evaporating black hole will also be presented. Research recently completed with Beth Brown, including her final Penrose diagram for an accreting black hole, will be presented.

gr-qc↗

arXiv2009

Global Structure of a Multi-Fluid Cosmology

Fluid cosmologies are consistent with the generally accepted observational evidence during intermediate and late times, and they need not have singular behavior in primordial times. A general form for fluid cosmology consistent with Einstein's equation is demonstrated, and a dynamic metric that incorporates fluid scale is developed. The large scale causal structure of a multi-fluid cosmology exemplary of standard cosmology is then examined. This is done through developing coupled rate equations for radiation, dust, and dark components. The beginning of the dissolution of the primordial fluid into the other components is singularity-free, since the fluid provides a non-vanishing scale for the cosmology. Penrose diagrams are developed for cosmologies both with and without a final state dark energy density.

gr-qc↗

arXiv2008

Construction of a Penrose Diagram for an Accreting Black Hole

A Penrose diagram is constructed for a spatially coherent black hole that accretes at stepwise steady rates as measured by a distant observer from an initial state described by a metric of Minkowski form. Coordinate lines are computationally derived, and radial light-like trajectories verify the viability of the diagram. Coordinate dependencies of significant features, such as the horizon and radial mass scale, are clearly demonstrated on the diagram. The onset of a singularity at the origin is shown to open a new region in space-time that contains the interior of the black hole.

gr-qc↗