48 found
Sort by:
Disambiguations:
Roger Penrose [45]R. Penrose [3]
  1. Roger Penrose (2014). On the Gravitization of Quantum Mechanics 2: Conformal Cyclic Cosmology. Foundations of Physics 44 (8):873-890.
    The 2nd Law of thermodynamics was driven by the Big Bang being extraordinary special, with hugely suppressed gravitational degrees of freedom. This cannot have been simply the result of a conventional quantum gravity. Conformal cyclic cosmology proposes a different picture, of a classical evolution from an aeon preceding our own. The ultimate Hawking evaporation of black holes is key to the 2nd Law and requires information loss, violating unitarity in a strongly gravitational context.
    Direct download (3 more)  
     
    My bibliography  
     
    Export citation  
  2. Roger Penrose (2014). On the Gravitization of Quantum Mechanics 1: Quantum State Reduction. Foundations of Physics 44 (5):557-575.
    This paper argues that the case for “gravitizing” quantum theory is at least as strong as that for quantizing gravity. Accordingly, the principles of general relativity must influence, and actually change, the very formalism of quantum mechanics. Most particularly, an “Einsteinian”, rather than a “Newtonian” treatment of the gravitational field should be adopted, in a quantum system, in order that the principle of equivalence be fully respected. This leads to an expectation that quantum superpositions of states involving a significant mass (...)
    Direct download (2 more)  
     
    My bibliography  
     
    Export citation  
  3. Roger Penrose (2011). Godel, the Mind, and the Laws of Physics. In Matthias Baaz (ed.), Kurt Gödel and the Foundations of Mathematics: Horizons of Truth. Cambridge University Press. 339.
    No categories
    Direct download (2 more)  
     
    My bibliography  
     
    Export citation  
  4. Roger Penrose (2011). Mathematics, the Mind, and the Physical World. In John Polkinghorne (ed.), Meaning in Mathematics. Oup Oxford.
    No categories
     
    My bibliography  
     
    Export citation  
  5. Roger Penrose (2010). Roger Penrose: Collected Works: Volume 1: 1953-1967. OUP Oxford.
    Professor Sir Roger Penrose's work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the first time and arranged chronologically over six volumes, each with an introduction from the author. Where relevant, individual papers also come with specific introductions or notes. The first volume covers the beginnings of a career that is ground-breaking from the outset. Inspired by courses given by Dirac and Bondi, much of the early published (...)
     
    My bibliography  
     
    Export citation  
  6. Roger Penrose (2010). Roger Penrose: Collected Works: Six Volume Set. OUP Oxford.
    Professor Sir Roger Penrose is one of the truly original thinkers of our time. He has made several remarkable contributions to science, from quantum physics and theories of human consciousness to relativity theory and observations on the structure of the universe. Unusually for a scientist, some of his ideas have crossed over into the public arena. Now his work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the (...)
     
    My bibliography  
     
    Export citation  
  7. Roger Penrose (2010). Roger Penrose: Collected Works: Volume 3: 1976-1980. OUP Oxford.
    Professor Sir Roger Penrose's work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the first time and arranged chronologically over six volumes, each with an introduction from the author. Where relevant, individual papers also come with specific introductions or notes. Many important realizations concerning twistor theory occurred during the short period of this third volume, providing a new perspective on the way that mathematical features of the complex (...)
     
    My bibliography  
     
    Export citation  
  8. Roger Penrose (2010). Roger Penrose: Collected Works: Volume 4: 1981-1989. OUP Oxford.
    Professor Sir Roger Penrose's work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the first time and arranged chronologically over six volumes, each with an introduction from the author. Where relevant, individual papers also come with specific introductions or notes. Among the new developments that occurred during this period was the introduction of a particular notion of 'quasi-local mass-momentum and angular momentum', the topic of Penrose's Royal Society (...)
     
    My bibliography  
     
    Export citation  
  9. Roger Penrose (2010). Roger Penrose: Collected Works: Volume 5: 1990-1996. OUP Oxford.
    Professor Sir Roger Penrose's work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the first time and arranged chronologically over six volumes, each with an introduction from the author. Where relevant, individual papers also come with specific introductions or notes. Publication of The Emperor's New Mind (OUP 1989) had caused considerable debate and Penrose's responses are included in this volume. Arising from this came the idea that large-scale (...)
     
    My bibliography  
     
    Export citation  
  10. Roger Penrose (2010). Roger Penrose: Collected Works: Volume 6: 1997-2003. OUP Oxford.
    Professor Sir Roger Penrose's work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the first time and arranged chronologically over six volumes, each with an introduction from the author. Where relevant, individual papers also come with specific introductions or notes. This sixth volume describes an actual experiment to measure the length of time that a quantum superposition might last (developing the Diósi-Penrose proposal). It also discusses the significant (...)
     
    My bibliography  
     
    Export citation  
  11. Roger Penrose (2010). Roger Penrose: Collected Works: Volume 2: 1968-1975. OUP Oxford.
    Professor Sir Roger Penrose's work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the first time and arranged chronologically over six volumes, each with an introduction from the author. Where relevant, individual papers also come with specific introductions or notes. Developing ideas sketched in the first volume, twistor theory is now applied to genuine issues of physics, and there are the beginnings of twistor diagram theory (an analogue (...)
    No categories
     
    My bibliography  
     
    Export citation  
  12. Roger Penrose & Albert Einstein (2005). Einstein's Miraculous Year: Five Papers That Changed the Face of Physics. Princeton University Press.
    No categories
     
    My bibliography  
     
    Export citation  
  13. Roger Penrose (2003). Consciousness, Computation, and the Chinese Room. In John M. Preston & Michael A. Bishop (eds.), Views Into the Chinese Room: New Essays on Searle and Artificial Intelligence. Oxford University Press.
     
    My bibliography  
     
    Export citation  
  14. Roger Penrose (2001). Consciousness, the Brain, and Spacetime Geometry: An Addendum: Some New Developments on the Orch OR Model for Consciousness. Annals of the New York Academy of Sciences 929:105-10.
  15. Sc Kleene, El Post, M. Kline, M. Lerman, L. Lowenheim, D. Normann, P. Odifreddi, G. Peano, Cs Peirce & R. Penrose (1999). R. PETER [1934] Uber den Zussammenhang der verschiedenen Begriffe der rekursiven Funktion, Math. Ann. In Edward R. Griffor (ed.), Handbook of Computability Theory. Elsevier. 34.
    No categories
    Translate to English
    | Direct download  
     
    My bibliography  
     
    Export citation  
  16. Roger Penrose (1999). The Emperor's New Mind: Concerning Computers, Minds, and the Laws of Physics. OUP Oxford.
    For many decades, the proponents of `artificial intelligence' have maintained that computers will soon be able to do everything that a human can do. In his bestselling work of popular science, Sir Roger Penrose takes us on a fascinating roller-coaster ride through the basic principles of physics, cosmology, mathematics, and philosophy to show that human thinking can never be emulated by a machine.
    Direct download  
     
    My bibliography  
     
    Export citation  
  17. Roger Penrose (1997). On Understanding Understanding. International Studies in the Philosophy of Science 11 (1):7 – 20.
    It is argued, by use of specific examples, that mathematical understanding is something which cannot be modelled in terms of entirely computational procedures. Our conception of a natural number (a non-negative integer: 0, 1, 2, 3,…) is something which goes beyond any formulation in terms of computational rules. Our ability to perceive the properties of natural numbers depends upon our awareness, and represents just one of the many ways in which awareness provides an essential ingredient to our ability to understand. (...)
    Direct download (5 more)  
     
    My bibliography  
     
    Export citation  
  18. Roger Penrose (1997). The Large, the Small, and the Human Mind. Cambridge University Press.
    This book is a fascinating and accessible summary of Roger Penrose's current thinking on those areas of physics in which he feels there are major...
    Direct download (5 more)  
     
    My bibliography  
     
    Export citation  
  19. Stuart R. Hameroff & Roger Penrose (1996). Conscious Events as Orchestrated Space-Time Selections. Journal of Consciousness Studies 3 (1):36-53.
  20. Stuart R. Hameroff & Roger Penrose (1996). Orchestrated Reduction of Quantum Coherence in Brain Microtubules: A Model for Consciousness. In Stuart R. Hameroff, Alfred W. Kaszniak & A. C. Scott (eds.), Toward a Science of Consciousness. MIT Press.
  21. Stephen Hawking & Roger Penrose (1996). The Nature of Space and Time. Princeton University Press.
    Why does time go forward, not backward?In this book, the two opponents touch on all these questions.
    Translate to English
    | Direct download  
     
    My bibliography  
     
    Export citation  
  22. Roger Penrose (1996). Beyond the Doubting of a Shadow. Psyche 2:89-129.
    Direct download (4 more)  
     
    My bibliography  
     
    Export citation  
  23. Roger Penrose & Stuart Hameroff (1996). Orchestrated Objective Reduction of Quantum Coherence in Brain Microtubules: The "Orch OR" Model for Consciousness. Mathematics and Computers in Simulation 40:453-480.
    Features of consciousness difficult to understand in terms of conventional neuroscience have evoked application of quantum theory, which describes the fundamental behavior of matter and energy. In this paper we propose that aspects of quantum theory (e.g. quantum coherence) and of a newly proposed physical phenomenon of quantum wave function "self-collapse"(objective reduction: OR -Penrose, 1994) are essential for consciousness, and occur in cytoskeletal microtubules and other structures within each of the brain's neurons. The particular characteristics of microtubules suitable for quantum (...)
    Direct download  
     
    My bibliography  
     
    Export citation  
  24. Roger Penrose & Stuart R. Hameroff (1995). What 'Gaps'? Reply to Grush and Churchland. Journal of Consciousness Studies 2 (2):98-111.
    Grush and Churchland (1995) attempt to address aspects of the proposal that we have been making concerning a possible physical mechanism underlying the phenomenon of consciousness. Unfortunately, they employ arguments that are highly misleading and, in some important respects, factually incorrect. Their article ‘Gaps in Penrose’s Toilings’ is addressed specifically at the writings of one of us (Penrose), but since the particular model they attack is one put forward by both of us (Hameroff and Penrose, 1995; 1996), it is appropriate (...)
    Direct download (2 more)  
     
    My bibliography  
     
    Export citation  
  25. Roger Penrose (1994). Is Conscious Awareness Consistent with Space-Time Descriptions? In Philosophy, Mathematics and Modern Physics. New York: Springer-Verlag.
     
    My bibliography  
     
    Export citation  
  26. Roger Penrose (1994). Interview with Jane Clark. Journal of Consciousness Studies 1 (1):17-24.
     
    My bibliography  
     
    Export citation  
  27. Roger Penrose (1994). Mechanisms, Microtubules, and the Mind. Journal of Consciousness Studies 1 (2):241-49.
  28. Roger Penrose (1994). Philosophy, Mathematics and Modern Physics. New York: Springer-Verlag.
    Translate to English
    |
     
    My bibliography  
     
    Export citation  
  29. Roger Penrose (1994). Shadows of the Mind. Oxford University Press.
    Presenting a look at the human mind's capacity while criticizing artificial intelligence, the author makes suggestions about classical and quantum physics and ..
    Direct download (3 more)  
     
    My bibliography  
     
    Export citation  
  30. Roger Penrose & J. Clark (1994). Discussion of Shadows of the Mind. Journal of Consciousness Studies 1 (1):17-24.
    Direct download  
     
    My bibliography  
     
    Export citation  
  31. Roger Penrose (1993). An Emperor Still Without Mind. Behavioral and Brain Sciences 16 (3):616.
    Direct download (2 more)  
     
    My bibliography  
     
    Export citation  
  32. Jason Zimba & Roger Penrose (1993). On Bell Non-Locality Without Probabilities: More Curious Geometry. Studies in History and Philosophy of Science Part A 24 (5):697-720.
    Direct download (3 more)  
     
    My bibliography  
     
    Export citation  
  33. Roger Penrose (1992). Comments on 'Penrose and Mathematical Ability'. Analysis 52 (2):87 - 88.
    No categories
    Direct download (5 more)  
     
    My bibliography  
     
    Export citation  
  34. Roger Penrose (1992). Setting the Scene: The Claim and the Issues. In D. Broadbent (ed.), The Simulation of Human Intelligence. Blackwell.
     
    My bibliography  
     
    Export citation  
  35. Roger Penrose (1991). Platońska rzeczywistość pojęć matematycznych. Zagadnienia Filozoficzne W Nauce 13.
    No categories
    Translate to English
    | Direct download  
     
    My bibliography  
     
    Export citation  
  36. Andy Clark, Michael Lockwood & Roger Penrose (1990). The Stuff of ConsciousnessMind, Brain and the Quantum.The Emperor's New Mind. Philosophical Quarterly 40 (161):509.
    No categories
    Direct download (3 more)  
     
    My bibliography  
     
    Export citation  
  37. Roger Penrose (1990). Precis of the Emperor's New Mind. Behavioral and Brain Sciences 13 (4):643-705.
    The emperor's new mind (hereafter Emperor) is an attempt to put forward a scientific alternative to the viewpoint of according to which mental activity is merely the acting out of some algorithmic procedure. John Searle and other thinkers have likewise argued that mere calculation does not, of itself, evoke conscious mental attributes, such as understanding or intentionality, but they are still prepared to accept the action the brain, like that of any other physical object, could in principle be simulated by (...)
    Direct download (3 more)  
     
    My bibliography  
     
    Export citation  
  38. Roger Penrose (1990). The Nonalgorithmic Mind. Behavioral and Brain Sciences 13 (4):692-705.
    Direct download (3 more)  
     
    My bibliography  
     
    Export citation  
  39. Roger Penrose (1989). The Emperor's New Mind. Oxford University Press.
    Winner of the Wolf Prize for his contribution to our understanding of the universe, Penrose takes on the question of whether artificial intelligence will ever ...
    Direct download (9 more)  
     
    My bibliography  
     
    Export citation  
  40. R. Penrose & B. J. Hiley (1987). Quantum Implications: Essays in Honour of David Bohm. In Basil J. Hiley & D. Peat (eds.), Quantum Implications: Essays in Honour of David Bohm. Methuen.
    No categories
     
    My bibliography  
     
    Export citation  
  41. Roger Penrose (1987). Quantum Physics and Conscious Thought. In Basil J. Hiley & D. Peat (eds.), Quantum Implications: Essays in Honour of David Bohm. Methuen.
  42. R. Penrose & C. J. Isham (1986). Quantum Concepts in Space and Time. Proceedings of the Third Oxford Symposium on Quantum Gravity, Held at Oxford, UK, March 1984. In. In Roger Penrose & C. J. Isham (eds.), Quantum Concepts in Space and Time. New York ;Oxford University Press. 1.
    No categories
    Direct download  
     
    My bibliography  
     
    Export citation  
  43. Roger Penrose (1986). Big Bangs, Black Holes and Time's Arrow. In Raymond Flood & Michael Lockwood (eds.), The Nature of Time. B. Blackwell.
    No categories
     
    My bibliography  
     
    Export citation  
  44. Roger Penrose (1986). Gravity and State Vector Reduction. In. In Roger Penrose & C. J. Isham (eds.), Quantum Concepts in Space and Time. New York ;Oxford University Press. 1--129.
    No categories
    Direct download  
     
    My bibliography  
     
    Export citation  
  45. Roger Penrose & C. J. Isham (eds.) (1986). Quantum Concepts in Space and Time. New York ;Oxford University Press.
    Recent developments in quantum theory have focused attention on fundamental questions, in particular on whether it might be necessary to modify quantum mechanics to reconcile quantum gravity and general relativity. This book is based on a conference held in Oxford in the spring of 1984 to discuss quantum gravity. It brings together contributors who examine different aspects of the problem, including the experimental support for quantum mechanics, its strange and apparently paradoxical features, its underlying philosophy, and possible modifications to the (...)
     
    My bibliography  
     
    Export citation  
  46. Roger Penrose (1983). Spinors and Torsion in General Relativity. Foundations of Physics 13 (3):325-339.
    Conformal rescalings of spinors are considered, in which the factor Ω, inε AB ↦Ωε AB, is allowed to be complex. It is argued that such rescalings naturally lead to the presence of torsion in the space-time derivative▽ a. It is further shown that, in standard general relativity, a circularly polarized gravitational wave produces a (nonlocal) rotation effect along rays intersecting it similar to, and apparently consistent with, the local torsion of the Einstein-Cartan-Sciama-Kibble theory. The results of these deliberations are suggestive (...)
    Direct download (3 more)  
     
    My bibliography  
     
    Export citation  
  47. Lionel S. Penrose & Roger Penrose (1958). Impossible Objects: A Special Type of Visual Illusion. British Journal of Psychology 49:31-33.
    Translate to English
    |
     
    My bibliography  
     
    Export citation  
  48. Stuart Hameroff & Roger Penrose, Personal Publications Media Views Ulimate Computing.
    Features of consciousness difficult to understand in terms of conventional neuroscience have evoked application of quantum theory, which describes the fundamental behavior of matter and energy. In this paper we propose that aspects of quantum theory (e.g. quantum coherence) and of a newly proposed physical phenomenon of quantum wave function "self-collapse"(objective reduction: OR -Penrose, 1994) are essential for consciousness, and occur in cytoskeletal microtubules and other structures within each of the brain's neurons. The particular characteristics of microtubules suitable for quantum (...)
    No categories
    Translate to English
    | Direct download  
     
    My bibliography  
     
    Export citation