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Block time: Why many physicists still don’t accept it?
, 2008
"... The concept of time as defined in physics is the most naturally interpreted as a block time. According to this interpretation, time is like any other parameter in physics, without any intrinsic flow and without any fundamental difference between past and future. Yet, such a view of time is in a shar ..."
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The concept of time as defined in physics is the most naturally interpreted as a block time. According to this interpretation, time is like any other parameter in physics, without any intrinsic flow and without any fundamental difference between past and future. Yet, such a view of time is in a sharp contrast with our intuitive subjective experience of time. Where this discrepancy comes from? I argue that this discrepancy is an artefact of the linguistic inconvenience that we use a single word “time ” to describe two very different things, one described by physics, the other being related to consciousness. To clearly distinguish between them, I refer the former to as pime, abbreviating the expression “physical time ” or “parameter time”. As the phenomenon of consciousness is not truly understood by our current understanding of physics, current physics has little to say about time. Physics is only about pime, which is a block pime without a flow and without a fundamental difference between past and future. The relation between pime and time remains a challenge for the future research as a part of the hard problem of the relation
If many physicists are right and no physical theory is perfect, then the use of physical observations can enhance computations
, 2013
"... The questions of what is computable in the physical world are usually analyzed in the context of a physical theory – e.g., what is computable in Newtonian physics, what is computable in quantum physics, etc. Many physicists believe that no physical theory is perfect, i.e., that no matter how many ob ..."
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Cited by 4 (3 self)
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The questions of what is computable in the physical world are usually analyzed in the context of a physical theory – e.g., what is computable in Newtonian physics, what is computable in quantum physics, etc. Many physicists believe that no physical theory is perfect, i.e., that no matter how many
Homological Algebra of Mirror Symmetry
 in Proceedings of the International Congress of Mathematicians
, 1994
"... Mirror Symmetry was discovered several years ago in string theory as a duality between families of 3dimensional CalabiYau manifolds (more precisely, complex algebraic manifolds possessing holomorphic volume elements without zeroes). The name comes from the symmetry among Hodge numbers. For dual Ca ..."
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Cited by 523 (3 self)
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CalabiYau manifolds V, W of dimension n (not necessarily equal to 3) one has dim H p (V, Ω q) = dim H n−p (W, Ω q). Physicists conjectured that conformal field theories associated with mirror varieties are equivalent. Mathematically, MS is considered now as a relation between numbers of rational curves
Dual polyhedra and mirror symmetry for Calabi–Yau hypersurfaces in toric varieties
 J. Alg. Geom
, 1994
"... We consider families F(∆) consisting of complex (n − 1)dimensional projective algebraic compactifications of ∆regular affine hypersurfaces Zf defined by Laurent polynomials f with a fixed ndimensional Newton polyhedron ∆ in ndimensional algebraic torus T = (C ∗ ) n. If the family F(∆) defined by ..."
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Cited by 467 (20 self)
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that the properties of this duality coincide with the properties of Mirror Symmetry discovered by physicists for CalabiYau 3folds. Our method allows to construct many new examples of CalabiYau 3folds and new candidates for their mirrors which were previously unknown for physicists. We conjecture that there exists
Traffic and related selfdriven manyparticle systems
, 2000
"... Since the subject of traffic dynamics has captured the interest of physicists, many surprising effects have been revealed and explained. Some of the questions now understood are the following: Why are vehicles sometimes stopped by ‘‘phantom traffic jams’ ’ even though drivers all like to drive fast? ..."
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Cited by 345 (40 self)
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Since the subject of traffic dynamics has captured the interest of physicists, many surprising effects have been revealed and explained. Some of the questions now understood are the following: Why are vehicles sometimes stopped by ‘‘phantom traffic jams’ ’ even though drivers all like to drive fast
On the symbiosis of physicists and linguists
 Romanian Reports in Physics 2008
"... Forty years ago, a physicist asked me what I am engaged in. I answered: “In quantitative linguistics”. “Oh, yes, ” he said, “you count letters, don’t you? ” I was surprised at his excellent information about the 19th century and said: “No, I never did. I try to find laws in language, just as you try ..."
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Cited by 1 (0 self)
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try to do in the nature. ” Never in my life I saw a face more perplex than his. But since then, the situation changed drastically. Today, there are many physicists counting letters, hoping to find physical laws behind them. And once in a decade they discover that letters behave like mesons and create
Genetic Algorithms, Noise, and the Sizing of Populations
 COMPLEX SYSTEMS
, 1991
"... This paper considers the effect of stochasticity on the quality of convergence of genetic algorithms (GAs). In many problems, the variance of buildingblock fitness or socalled collateral noise is the major source of variance, and a populationsizing equation is derived to ensure that average sig ..."
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Cited by 276 (85 self)
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equation may be viewed as a coarse delineation of a boundary between what a physicist might call two distinct phases of GA behavior. At low population sizes the GA makes many errors of decision, and the quality of convergence is largely left to the vagaries of chance or the serial fixup of flawed
Holographic duality with a view toward manybody physics
, 2009
"... These are notes based on a series of lectures given at the KITP workshop Quantum Criticality and the AdS/CFT Correspondence in July, 2009. The goal of the lectures was to introduce condensed matter physicists to the AdS/CFT correspondence. Discussion of string theory and of supersymmetry is avoided ..."
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Cited by 150 (2 self)
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These are notes based on a series of lectures given at the KITP workshop Quantum Criticality and the AdS/CFT Correspondence in July, 2009. The goal of the lectures was to introduce condensed matter physicists to the AdS/CFT correspondence. Discussion of string theory and of supersymmetry is avoided
ECONOPHYSICS: WHAT CAN PHYSICISTS CONTRIBUTE TO ECONOMICS?
"... In recent years, a considerable number of physicists have started applying physics concepts and methods to understand economic phenomena. The term “Econophysics ” is sometimes used to describe this work. Economic fluctuations can have many repercussions, and understanding fluctuations is a topic tha ..."
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In recent years, a considerable number of physicists have started applying physics concepts and methods to understand economic phenomena. The term “Econophysics ” is sometimes used to describe this work. Economic fluctuations can have many repercussions, and understanding fluctuations is a topic
Econophysics: What can physicists contribute to economics?
"... Abstract. In recent years, a considerable number of physicists have started applying physics concepts and methods to understand economic phenomena. The term "Econophysics " is sometimes used to describe this work. Economic fluctuations can have many repercussions, and understanding fluctu ..."
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Abstract. In recent years, a considerable number of physicists have started applying physics concepts and methods to understand economic phenomena. The term "Econophysics " is sometimes used to describe this work. Economic fluctuations can have many repercussions, and understanding
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