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  1. Eftichios Bitsakis (1991). Mass, Matter, and Energy. A Relativistic Approach. Foundations of Physics 21 (1):63-81.
    The debate concerning the relations between matter and motion has the same age as philosophy itself. In modern times this problem was transformed into the one concerning the relations between mass and energy. Newton identified mass with matter. Classical thermodynamics brought this conception to its logical conclusion, establishing an ontic dichotomy between mass-matter and energy. On the basis of this pre-relativistic conception, Einstein's famous equation has been interpreted as a relation of equivalence between mass-matter and energy. Nevertheless, if we reject (...)
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  2. N. N. Bogolubov & N. N. Bogolubov Jr (1985). Some Approaches to Polaron Theory. Foundations of Physics 15 (11):1079-1177.
    Here, in our approximation of polaron theory, we examine the importance of introducing theT product, which turn out to be a very convenient theoretical approach for the calculation of thermodynamical averages.We focus attention on the investigation of the so-called linear polaron Hamiltonian and present in detail the calculation of the correlation function, spectral function, and Green function for such a linear system.It is shown that the linear polaron Hamiltonian provides an exactly solvable model of our system, and the result obtained (...)
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  3. Christian Cormier-Delanoue (1996). Strangeness of Matter Waves. Foundations of Physics 26 (1):95-103.
    The concept of waves associated with any material particle has been a considerable boost to theoretical physics, and it appears to be in accordance with many experimental results. Some relativistic properties of these assumed waves are studied in comparison to other physical waves. It turns out that matter waves may nor be considered as objectively real, and that any physics resting on such a concept can only be subjective.
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  4. L. De la Peña & A. M. Cetto (1994). The Wave Properties of Matter and the Zeropoint Radiation Field. Foundations of Physics 24 (5):753-781.
    The origin of the wave properties of matter is discussed from the point of view of stochastic electrodynamics. A nonrelativistic model of a charged particle with an effective structure embedded in the random zeropoint radiation field reveals that the field induces a high-frequency vibration on the particle; internal consistency of the theory fixes the frequency of this jittering at mc2/ħ. The particle is therefore assumed to interact intensely with stationary zeropoint waves of this frequency as seen from its proper frame (...)
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  5. H. Dehnen & D. Ebner (1996). Derivation of the Principle of Equivalence for Antimatter. Foundations of Physics 26 (1):105-115.
    In view of the announcement of some experiments testing the principle of equivalence for antimatter, we give here stringent arguments, based on elementary and well-established physical principles, that these experiments will turn out negative. The question is important because disproving the principle of equivalence (equality of inertial and gravitating mass) would entail a breakdown of general relativity. (There is only one type of geodesics and there are no antigeodesics for antimatter).
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  6. Edmund A. DiMarzio (1977). A Unified Theory of Matter. II. Derivation of the Fundamental Physical Law. Foundations of Physics 7 (11-12):885-905.
    The equation for the fundamental field quantity ϱ is obtained. It is Div $\rho ^\mu (\Omega _1 ) = \operatorname{h} \int {[\rho _\mu (\Omega _1 ),\rho ^\mu (\Omega _2 )]_ - \operatorname{d} \Omega _2 } $ ,where h is an arbitrary function oft andr, and [,]− is the commutator. The derivation requires the following hypotheses:(1) All of physical reality is completely described by the field ϱ.(2) Relativistic covariance of the equations governing ϱ.(3) Principle of continguous action.(4) Conservation of total amount (...)
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  7. Edmund A. DiMarzio (1977). A Unified Theory of Matter. I. The Fundamental Idea. Foundations of Physics 7 (7-8):511-528.
    The Lorentz transformation is derived without assuming that the velocity of light is a constant. This suggests that the constantc which appears in the transformation has a deeper significance than heretofore commonly assumed. It is hypothesized that there exists, in all of physical reality, velocities of only one magnitude. The magnitude isc, the speed of light in vacuum. This hypothesis forces us to view a fundamental particle as an extended object and matter in general as a field ρ(t, r, θ), (...)
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  8. Sharon R. Ford (2011). Deriving the Manifestly Qualitative World From a Pure-Power Base: Light-Like Networks. Philosophia Scientiae 15 (3):155-175.
    Seeking to derive the manifestly qualitative world of objects and entities without recourse to fundamental categoricity or qualitativity, I offer an account of how higher-order categorical properties and objects may emerge from a pure-power base. I explore the possibility of ‘fields’ whose fluctuations are force-carrying entities, differentiated with respect to a micro-topology of curled-up spatial dimensions. Since the spacetime paths of gauge bosons have zero ‘spacetime interval’ and no time-like extension, I argue that according them the status of fundamental entities (...)
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  9. Iris Fry (1996). On the Biological Significance of the Properties of Matter: L. J. Henderson's Theory of the Fitness of the Environment. [REVIEW] Journal of the History of Biology 29 (2):155 - 196.
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  10. S. Fujita, T. Kimura & Y. Zheng (1991). On the Bose-Einstein Condensation of Free Relativistic Bosons with or Without Mass. Foundations of Physics 21 (9):1117-1130.
    The Bose-Einstein condensation of free relativistic particles [ε=(M 2 c 4 +c 2 p 2 ) 1/2 −Mc 2 ] is studied rigorously. For massless bosons (ε=cp), the condensation transition of third (second) order occurs in2 (3) dimensions (D). The molar heat capacity follows the T 2 (T 3 ) law below the condensation temperature Tc [k B Tc=(2πħ 2 c 2 n/1.645) 1/2 [(π 2 ħ 3 c 3 n/1.202) 1/3 ], reaches4.38 (10.8) R at T=Tc, and approaches the (...)
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  11. H. F. M. Goenner (1984). Theories of Gravitation with Nonminimal Coupling of Matter and the Gravitational Field. Foundations of Physics 14 (9):865-881.
    The foundations of a theory of nonminimal coupling of matter and the gravitational field in the framework of Riemannian (or Riemann-Cartan) geometry are presented. In the absence of matter, the Einstein vacuum field equations hold. In order to allow for a Newtonian limit, the theory contains a new parameter l0 of dimension length. For systems with finite total mass, l0 is set equal to the Schwarzschild radius.
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  12. Howard Grotch & Emil Kazes (1980). Difficulties with the Partial Quantization of Systems. Foundations of Physics 10 (7-8):655-659.
    Proposals of quantizing matter without also quantizing fields are assessed. In one of these the principle of superposition is given up and an estimate of its violation is suggested. Another proposal, which retains the principle of superposition, is shown to be inconsistent with the equations of motion.
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  13. Leopold Halpern (1994). Matter and Geometry in a Unified Theory. Foundations of Physics 24 (12):1697-1703.
    The prediction of general relativity on the gravitational collapse of matter ending in a point is viewed as an absurdity of the kind to be expected in any consistent physical theory due to ultimate conflicts of the axioms of geometry with the properties of physical objects. The necessity to introduce a probability interpretation for the solution of partial differential equations in space time for quantum theory points to similar roots. It is pointed out that quantum theory in the very small (...)
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  14. Piet Hut, Mark Alford & Max Tegmark (2006). On Math, Matter and Mind. Foundations of Physics 36 (6):765-794.
    We discuss the nature of reality in the ontological context of Penrose’s math-matter-mind triangle. The triangle suggests the circularity of the widespread view that math arises from the mind, the mind arises out of matter, and that matter can be explained in terms of math. Non-physicists should be wary of any claim that modern physics leads us to any particular resolution of this circularity, since even the sample of three theoretical physicists writing this paper hold three divergent views. Some physicists (...)
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  15. M. M. Islam & H. Weigel (2000). An Effective Field Theory Model to Describe Nuclear Matter in Heavy-Ion Collisions. Foundations of Physics 30 (4):577-597.
    Relativistic mean field theory with mesons σ, ω, π and ρ mediating interactions and nucleons as basic fermions has been very successful in describing nuclear matter and finite nuclei. However, in heavy-ion collisions, where the c. m. energy of two colliding nucleons will be in the hundreds of GeV region, nucleons are not expected to behave as point-like particles. Analyses of elastic pp and ¯pp scattering data in the relevant c. m. energy range show that the nucleon is a composite (...)
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  16. Werner Israel (1996). Imploding Stars, Shifting Continents, and the Inconstancy of Matter. Foundations of Physics 26 (5):595-616.
    Two revolutionary concepts of the twentieth century—continental drift and the existence of superdense stars and black holes—had extended histories which ran in curious parallel for five decades. Between the wars each encountered a fierce and emotionally charged resistance which may have had a common psychological root. Each threatened man's instinctive faith in the permanence of matter.
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  17. Mark Israelit (2005). Wesson's Induced Matter Theory with a Weylian Bulk. Foundations of Physics 35 (10):1725-1748.
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  18. Mark Israelit & Nathan Rosen (1995). Cosmic Dark Matter and Dirac Gauge Function. Foundations of Physics 25 (5):763-777.
    It is suggested that the dark matter of the universe is due to the presence of a scalar field described by the gauge function introduced by Dirac in his modification of the Weyl geometry. The behavior of such dark matter is investigated.
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  19. Mark Israelit & Nathan Rosen (1992). Weyl-Dirac Geometry and Dark Matter. Foundations of Physics 22 (4):555-568.
    Weyl proposed a geometry that differed from Riemannian geometry, which underlies general relativity, in that it contained a vector that could be interpreted as describing the electromagnetic field. Dirac modified this geometry to remove certain difficulties and based it on a variational principle which gave satisfactory field equations for gravitation and electromagnetism. However, by changing the value of a parameter appearing in his variational principle one gets, instead of electromagnetism, a field of massive particles of spin 1, which can be (...)
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  20. Thomas Juffmann, Stefan Nimmrichter, Markus Arndt, Herbert Gleiter & Klaus Hornberger (2012). New prospects for de Broglie interferometry. Foundations of Physics 42 (1):98-110.
    We consider various effects that are encountered in matter wave interference experiments with massive nanoparticles. The text-book example of far-field interference at a grating is compared with diffraction into the dark field behind an opaque aperture, commonly designated as Poisson’s spot or the spot of Arago. Our estimates indicate that both phenomena may still be observed in a mass range exceeding present-day experiments by at least two orders of magnitude. They both require, however, the development of sufficiently cold, intense and (...)
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  21. Aharon Kantorovich (1973). Structure of Hadron Matter: Hierarchy, Democracy, or Potentiality? [REVIEW] Foundations of Physics 3 (3):335-349.
    An attempt is made to give a methodological and physical characterization to the concept of the structure of matter. The methodological status of theories describing the structure of hadrons is discussed. A parallelism is drawn between the quark model as a theory of the mathematical composite structure of hadrons and Plato's theory of matter. The merger of the bootstrap idea with a quark substructure of hadrons is discussed. A third approach to the structure of hadron matter is presented. It resembles (...)
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  22. H. V. Klapdor-Kleingrothaus & I. V. Krivosheina (2003). Search for Cold Dark Matter and Solar Neutrinos with GENIUS and GENIUS-TF. Foundations of Physics 33 (5):831-837.
    The new project GENIUS will cover a wide range of the parameter space of predictions of SUSY for neutralinos as cold dark matter. Further it has the potential to be a real-time detector for low-energy (pp and 7Be) solar neutrinos. A GENIUS Test Facility has been funded and will come into operation by early 2003.
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  23. Thomas E. Phipps Jr (1997). Newton Versus Einstein: How Matter Interacts with Matter. [REVIEW] Foundations of Physics 27 (10):1457-1460.
  24. Andrei E. Ruckenstein (2000). Bose Condensation Without Broken Symmetries. Foundations of Physics 30 (12):2113-2124.
    This paper considers the issue of Bose–Einstein condensation in a weakly interacting Bose gas with a fixed total number of particles. We use an old current algebra formulation of non-relativistic many body systems due to Dashen and Sharp to show that, at sufficiently low temperatures, a gas of weakly interacting Bosons displays Off-diagonal Long Range Order in the sense introduced by Penrose and Onsager. Even though this formulation is somewhat cumbersome it may demystify many of the standard results in the (...)
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  25. I. Schmelzer (2009). A Condensed Matter Interpretation of SM Fermions and Gauge Fields. Foundations of Physics 39 (1):73-107.
    We present the bundle (Aff(3)⊗ℂ⊗Λ)(ℝ3), with a geometric Dirac equation on it, as a three-dimensional geometric interpretation of the SM fermions. Each (ℂ⊗Λ)(ℝ3) describes an electroweak doublet. The Dirac equation has a doubler-free staggered spatial discretization on the lattice space (Aff(3)⊗ℂ)(ℤ3). This space allows a simple physical interpretation as a phase space of a lattice of cells.We find the SM SU(3) c ×SU(2) L ×U(1) Y action on (Aff(3)⊗ℂ⊗Λ)(ℝ3) to be a maximal anomaly-free gauge action preserving E(3) symmetry and symplectic (...)
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  26. V. Shekhawat (1976). Some Preliminary Formulations Toward a New Theory of Matter. Foundations of Physics 6 (2):221-235.
    Matter is pictured as a primitive fluid substratum having the fundamental property of fluctuating at a constant frequency. From this are derived the discrete properties of space and time, and it follows that, at the microlevel, talk of pure space and pure time involves us in ambiguities. A new interpretation of Planck's constant emerges according to which it is a quantum of matter-time combination. Thus, a quantum of matter-space combination should exist. On pursuing further the hydrodynamic model, such a constant (...)
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  27. S. Tarzi (2003). Exclusion Principles as Restricted Permutation Symmetries. Foundations of Physics 33 (6):955-979.
    We give a derivation of exclusion principles for the elementary particles of the standard model, using simple mathematical principles arising from a set theory of identical particles. We apply the theory of permutation group actions, stating some theorems which are proven elsewhere, and interpreting the results as a heuristic derivation of Pauli's Exclusion Principle (PEP) which dictates the formation of elements in the periodic table and the stability of matter, and also a derivation of quark confinement. We arrive at these (...)
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  28. W. Thirring (1990). Stability of Matter. Foundations of Physics 20 (9):1103-1110.
    A Hamiltonian which is bounded from below by a multiple of the number of particles is called stable. We discuss which interactions are stable and which are not. Furthermore we show how this stability is related to other notions of stability.
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  29. Donald Whitfield & Ashley L. Preston (eds.) (2006). What's the Matter?: Readings in Physics. Great Books Foundation.
  30. E. T. Whittaker (1949/1979). From Euclid to Eddington: A Study of Conceptions of the External World. Ams Press.
    In this system, the properties of space were believed to be in accord with the geometry of Euclid ; and one might have expected that the correctness of the ...
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  31. Torsten Wilholt (2008). When Realism Made a Difference: The Constitution of Matter and its Conceptual Enigmas in Late 19th Century Physics. Studies in History and Philosophy of Modern Physics 39 (1):1-16.
    The late 19th century debate among German-speaking physicists about theoretical entities is often regarded as foreshadowing the scientific realism debate. This paper brings out differences between them by concentrating on the part of the earlier debate that was concerned with the conceptual consistency of the competing conceptions of matter—mainly, but not exclusively, of atomism. Philosophical antinomies of atomism were taken up by Emil Du Bois-Reymond in an influential lecture in 1872. Such challenges to the consistency of atomism had repercussions within (...)
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  32. Torsten Wilholt (2001). Ludwig Boltzmann's Mathematical Argument for Atomism. Vienna Circle Institute Yearbook 9:199-211.
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