Results 51 to 60 of about 51,813 (205)

Quantum Cosmological Relational Model of Shape and Scale in 1-d

, 2011
Relational particle models are useful toy models for quantum cosmology and the problem of time in quantum general relativity. This paper shows how to extend existing work on concrete examples of relational particle models in 1-d to include a notion of ...
Abramowitz M, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E, Anderson E Barbour J B, Barbour J B, Barbour J B, Barbour J B, Barbour J B, Barbour J B, Barbour J B, Barbour J B Elze H-T, Barbour J B Foster B Z, Barbour J B Smolin L, Barvinsky A O, Barvinsky A O, Bojowald M, Courant R, Dirac P A M, Edward Anderson, Frose Fischer C, Gryb S B, Halliwell J J, Harrison E R, Hartle J B, Isham C J, Isham C J, Kiefer C, Kuchař K V, Kuchař K V, Kuchař K V, Kuchař K V, Kuchař K V Kunstatter G Vincent D Williams J, Lanczos C, Landau L D, Marchal C, Messiah A, Milne E A, Misner C W, Misner C W, Misner C W, Mizushima M, Moss I, Pauling L, Peebles P J E, Penrose R, Rindler W, Robinett R W, Rovelli C, Ryan M, Schwinger J, Smolin L, Smolin L, Tetradis N, Wheeler J A, Wilson A H, Wiltshire D L, Á Gergely L, Á Gergely L   +82 more
core   +1 more source

Non-chaotic dynamics in general-relativistic and scalar-tensor cosmology [PDF]

, 2006
In the context of scalar-tensor models of dark energy and inflation, the dynamics of vacuum scalar-tensor cosmology are analysed without specifying the coupling function or the scalar field potential.
Banerjee N, Biswas T Notari A, Brown M G Freese K Kinney W H, Buniy R V, Calzetta E, Catena R, Easther R, Esposito-Farése G, Fakir R, Fakir R, Fakir R, Fang W, Faraoni, Faraoni V, Faraoni V, Faraoni V, Foster S, Fujii Y, Fujii Y, Glendinning P, Guckenheimer J, Gunzig E, Gunzig E, Holden D J, Liddle A R, Liddle A R, Lu H Q, M N Jensen, Matarrese S Baccigalupi C Perrotta F, Nojiri S Odintsov S D, Page D N, Perrotta F Baccigalupi C, S A Theuerkauf, Toporensky A V, Toporensky A V, Tsujikawa S, V Faraoni, Wald R M, Weinberg S, Will C M   +39 more
core   +2 more sources

Work Versus Force: Simultaneous Processes for Describing Interactions

Advanced Physics Research, EarlyView.
ABSTRACT Achieving a unified description of interactions remains an open challenge in theoretical physics, which currently describes four fundamental forces. This situation may be viewed differently when interactions are formulated in terms of processes (work as actio) rather than forces (force as actio), not only at the macroscopic level but also at ...
Grit Kalies, Duong D. Do, Cornelia Breitkopf   +2 more
wiley   +1 more source

The Early Universe in Loop Quantum Cosmology [PDF]

, 2005
Loop quantum cosmology applies techniques derived for a background independent quantization of general relativity to cosmological situations and draws conclusions for the very early universe.
Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A, Banerjee K, Belinskii V A, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Date G, Domagala M, Fleischhack C, Hofmann S, Hossain G M, Immirzi G, Lidsey J E, Martin Bojowald, Meissner K A, Mulryne D J, Okolow A, Rovelli C, Rovelli C, Sahlmann H, Sahlmann H, Sahlmann H, Singh P, Thiemann T, Thiemann T, Tsujikawa S, Vandersloot K, Vereshchagin G V, Willis J, Wiltshire D L   +43 more
core   +1 more source

Guiding and Manipulating Light Fields in Microstructured Liquid Crystals

Advanced Physics Research, EarlyView.
This review summarizes recent advances in guided‐wave optics enabled by microstructured liquid crystal (LC) devices, covering their fundamental material properties, key degree of freedom for dynamic light field manipulations. The advances of linear guided‐wave optics, nonlinear‐optics with spatial optical solitons, and microlasers in LC‐based devices ...
Shan‐shan Chang, Yong‐shuai Li, Jin‐hui Chen   +2 more
wiley   +1 more source

Kant on Rational Reference: Theology as transcendental philosophy

European Journal of Philosophy, EarlyView.
Abstract The Critical Kant famously held that our cognition requires intuition, or essentially singular representation. Kant is also often understood as taking a dismissive attitude toward his rationalist predecessors' accounts of how we cognize singulars or individuals.
Maya Krishnan
wiley   +1 more source

Magnetic properties of geraisites, the first tektite strewn field identified in Brazil

Meteoritics &Planetary Science, EarlyView.
Abstract Geraisites are a newly recognized class of tektite from Brazil. They occur as centimeter‐sized, elongated to subspherical bodies scattered across surface gravel and shallow subsurface layers within a ~90‐km‐long strewn field extending between the municipalities of São João do Paraíso and Curral de Dentro, near the border between the states of ...
Melissa De Andrade Nunes, Ricardo I. F. Trindade, João Pedro Rodriguez Pinto, Alvaro P. Crósta, Gabriel G. Silva, Ludovic Ferrière, Camila R. Sales, Giovanna M. Tosi   +7 more
wiley   +1 more source

Anomaly-induced effective action and Chern–Simons modification of general relativity

Physics Letters B, 2015
Recently it was shown that the quantum vacuum effects of massless chiral fermion field in curved space–time leads to the parity-violating Pontryagin density term, which appears in the trace anomaly with imaginary coefficient.
Sebastião Mauro, Ilya L. Shapiro
doaj   +1 more source

Degenerate Configurations, Singularities and the Non-Abelian Nature of Loop Quantum Gravity

, 2006
Degenerate geometrical configurations in quantum gravity are important to understand if the fate of classical singularities is to be revealed. However, not all degenerate configurations arise on an equal footing, and one must take into account dynamical ...
Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A Bojowald M Willis J, Banerjee K, Berger B, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M, Bojowald M Hernández H H H Morales-Técotl H A, Bojowald M Morales-Técotl H A, Bojowald M Swiderski R, Brunnemann J, Brunnemann J Thiemann T, Brunnemann J Thiemann T, Brunnemann J Thiemann T, Giesel K Thiemann T, Husain V, Immirzi G, Martin Bojowald, Modesto L, Neville D E, Sahlmann H Thiemann T, Thiemann T, Thiemann T, Willis J   +39 more
core   +1 more source

Theologies of Mind: Eriugena and Pratyabhijñā Śaivism

Modern Theology, EarlyView.
Abstract Though Eriugena's affinities with several Hindu traditions are clear, this article offers to my knowledge the first detailed discussion of Eriugena's theology in relation to any Indic theological school, here, the nondualist Śaiva tradition known as the Pratyabhijñā (“Recognition”) lineage.
Matthew Z. Vale
wiley   +1 more source