Sorkin, Expressing entropy globally in terms of 4D field-correlations, J. Sorkin, Everpresent Lambda - II: D 87 6 , , arXiv: Terno, Fundamental quantum optics experiments conceivable with satellites -- reaching relativistic distances and velocities, Class. Sorkin, Toward a fundamental theorem of quantal measure theory, Mathematical Structures in Computer Science 22, issue 05, , arXiv: D82, , arXiv: Sorkin, Massless particle diffusion in causal set theory, J.

A40 , arXiv: Sorkin Perimeter Institute and Syracuse University , Is the cosmological "constant" a nonlocal quantum residue of discreteness of the causal set type? B , arXiv: Sorkin, Discreteness without symmetry breaking: Sorkin, Big extra dimensions make Lambda too small, Braz. D71 , arXiv: Sorkin, An energy bound deduced from the vanishing of the radiation reaction force during uniform acceleration, Modern Physics Letters A19, , arXiv: A19 , arXiv: D69, , arXiv: Garcia, Joe Henson and Rafael D.

D67, , arXiv: D66, , arXiv: Sorkin, On the "renormalization" transformations induced by cycles of expansion and contraction in causal set cosmology, Phys.

## List of unsolved problems in physics - Wikipedia

D63, , arXiv: Rideout and Rafael D. Physics 39, , arXiv: D61, , arXiv: D58, , arXiv: A13, , arXiv: Phys 33, A. Daughton, Gu Zhichong, G. A8, Supurna Sinha, Rafael D. A7, ; and A9, Michele Bourdeau and R. D45, Rafael D. Physica Scripta T36, P. Sorkin, Interpretation of the "quantum-stabilized skyrmion", Phys. D41, Ch.

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A4, P. D39, Ch. Sorkin, Bombelli et al. Sorkin, Spacetime as a Causal Set, Phys. B, Luca Bombelli, Rabinder K. B, A. B, Rafael D. Koul, Joohan Lee and Rafael D. D34, Reprinted in: D33, Rafael D. New York , Rafael D. Essays in Honor of the 60th Birthday of Bryce S. D27, John L.

Friedman and Rafael D. Sorkin, Dyon Spin and Statistics: D20, Rafael D.

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A12, Rafael D. A10, ; and A11, J. D12, ; and D23, Rafael D. Fay Dowker, Raquel S. Proceedings of the international meeting on "Spin-statistics connections and commutation relations, experimental tests and theoretical implications", Capri, Italy, May June 4, , AIP, , arXiv: Sorkin, Two Topics concerning Black Holes: Extremality of the Energy, Fractality of the Horizon, S. Directions in General Relativity: Proceedings of the , International Symposium, Maryland, Vol.

Sorkin, Summary of Workshop A3: Sorkin, Spacetime and Causal Sets, J.

C63 Rafael D. Sorkin, Consequences of Spacetime Topology, A. Sorkin, Classical Topology and Quantum Phases: Mathematics and General Relativity: A47 Rafael D. Sorkin, A 5-Dimensional Monopole, J. Sorkin, Posets as Lattice Topologies, B.

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Ellis eds , Foundations of Space and Time: Sorkin, Is the spacetime metric Euclidean rather than Lorentzian? Sorkin, Relativity theory does not imply that the future already exists: Sorkin, Geometry from Order: Causal Sets, Einstein Online Vol. Black Holes and Relativistic Stars, U. Sorkin, Introduction to Topological Geons, P. Thesis, California Institute of Technology http: Micro and Macro Structure of Spacetime, Peyresq, France, Why should and why can the path integral serve as the basis for quantum theory?

Fields, Particles and Information Geometry, Dublin Institute for Advanced Studies, Dublin, Eire, Why should and why can the path integral serve as the basis for quantum theory? Invited Lecture , Peyresq Physics 16, Micro and macro structure of spacetime, Peyresq, France, Does a quantum particle know its own energy? Reflections on quantum gravity, Stellenbosch, South Africa, Logic: Continuous Computational Models, Dagstuhl, Germany, Is a past finite order the inner basis of spacetime? All of these achievements depended on the theoretical physics as a moving force both to suggest experiments and to consolidate results — often by ingenious application of existing mathematics, or, as in the case of Descartes and Newton with Leibniz , by inventing new mathematics.

Fourier's studies of heat conduction led to a new branch of mathematics: Modern theoretical physics attempts to unify theories and explain phenomena in further attempts to understand the Universe , from the cosmological to the elementary particle scale. Where experimentation cannot be done, theoretical physics still tries to advance through the use of mathematical models. Mainstream theories sometimes referred to as central theories are the body of knowledge of both factual and scientific views and possess a usual scientific quality of the tests of repeatability, consistency with existing well-established science and experimentation.

There do exist mainstream theories that are generally accepted theories based solely upon their effects explaining a wide variety of data, although the detection, explanation, and possible composition are subjects of debate. The proposed theories of physics are usually relatively new theories which deal with the study of physics which include scientific approaches, means for determining the validity of models and new types of reasoning used to arrive at the theory. However, some proposed theories include theories that have been around for decades and have eluded methods of discovery and testing.

Proposed theories can include fringe theories in the process of becoming established and, sometimes, gaining wider acceptance. Proposed theories usually have not been tested. Fringe theories include any new area of scientific endeavor in the process of becoming established and some proposed theories. It can include speculative sciences. This includes physics fields and physical theories presented in accordance with known evidence, and a body of associated predictions have been made according to that theory.

Some fringe theories go on to become a widely accepted part of physics.

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Other fringe theories end up being disproven. Some fringe theories are a form of protoscience and others are a form of pseudoscience. The falsification of the original theory sometimes leads to reformulation of the theory.

They are usually created to investigate phenomena that are not readily experienced in every-day situations. These usually lead to real experiments designed to verify that the conclusion and therefore the assumptions of the thought experiments are correct. The EPR thought experiment led to the Bell inequalities , which were then tested to various degrees of rigor , leading to the acceptance of the current formulation of quantum mechanics and probabilism as a working hypothesis.

From Wikipedia, the free encyclopedia. This links to the question of it using mathematics in a less formally rigorous, and more intuitive or heuristic way than, say, mathematical physics. Newton's theory of gravitation, Einstein's theory of relativity and Maxwell's theory of electromagnetism share some of these attributes.

Chu-Carroll, March 13, Theorems, Lemmas, and Corollaries. Good Math, Bad Math blog. Vibration of Continuous Systems illustrated ed. A 4,year History illustrated ed. Britannica , pg The Road to Reality. Fourier decompositions and hyperfunctions". Theoretical Phenomenology Computational Experimental Applied.

Electrostatics Magnetostatics Plasma physics.

## List of unsolved problems in physics

Atomic physics Molecular physics Optics Photonics Quantum optics. Accelerator Astroparticle Nuclear Quantum chromodynamics. Quantum electrodynamics Quantum field theory Quantum gravity. Retrieved from " https: Webarchive template wayback links Wikipedia pages semi-protected against vandalism All articles with unsourced statements Articles with unsourced statements from August Wikipedia articles with GND identifiers. Views Read View source View history. In other projects Wikimedia Commons. This page was last edited on 19 August , at By using this site, you agree to the Terms of Use and Privacy Policy.

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