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stuhlmueller + physics   47

Information, Physics and Computation
Draft of an introduction to the research field at the interface between statistical physics, theretical computer science/discrete mathematics, and coding/information theory.
math  physics  information  compsci  book 
july 2009 by stuhlmueller
Leonard Susskind - Modern Physics
Video lectures on classical mechanics, special relativity, general relativity, and quantum mechanics.
physics  mechanics  video  lectures 
june 2009 by stuhlmueller
Structure and Interpretation of Classical Mechanics
SICP style book on classical mechanics by Gerry Sussman and Jack Wisdom.
math  physics  programming  mechanics 
june 2009 by stuhlmueller
Physics, Topology, Logic and Computation: A Rosetta Stone
A formal sketch of how category theory can serve to clarify the analogies between physics, topology, logic and computation.
physics  topology  logic  computation 
march 2009 by stuhlmueller
Motion Mountain - The Adventure of Physics
"the story of physics in the way I would have liked to hear it as a student. Simple, vivid, up to date - and stimulating. I wanted to write a text that is never boring, always challenging and surprising."
physics  ebook 
december 2008 by stuhlmueller
Mathematical undecidability and quantum randomness
"We demonstrate that the states of elementary quantum systems are capable of encoding mathematical axioms and show that quantum measurements are capable of revealing whether a given proposition is decidable or not within the axiomatic system."
math  quantum  physics 
december 2008 by stuhlmueller
Life at Low Reynolds Number (pdf)
"the world is crazily different for tiny organisms (or other low-Reynolds number life)"
biology  physics 
november 2008 by stuhlmueller
PIRSA - Perimeter Institute Recorded Seminar Archive
"PIRSA is a permanent, free, searchable, and citable archive of recorded seminars from relevant bodies in physics."
physics  science  video 
september 2008 by stuhlmueller
What Will the LHC Find?
A list of possible discoveries by the Large Hadron Collider and the probability of each discovery being made within the next five years.
physics  prediction  lhc 
august 2008 by stuhlmueller
Holographic Principle
'volume itself is illusory and the universe is really a hologram which is isomorphic to the information "inscribed" on the spherical surface of its boundary. [..] the fundamental particle is a bit (1 or 0) of information.'
physics  information  entropy 
august 2008 by stuhlmueller
How Big are Quantum States? (Scott Aaronson)
If you have a quantum state of n qubits, does it act more like n classical bits, or does it act more like 2^n bits?
quantum  physics  compsci 
june 2008 by stuhlmueller
Fundamental Physics of MR Imaging
"A wonderfully written article that gives a great introduction to the physics of how MRI scanners work. It is both clearly written for the non-specialist and fantastically complete."
mri  physics  brain 
may 2008 by stuhlmueller
A Backward Look to the Future
E. T. Jaynes' thoughts on physics, probability, and on what he learned during his 50 years as a researcher.
physics  probabilitytheory  jaynes  research 
may 2008 by stuhlmueller
Predicting the Cosmological Constant from the Causal Entropic Principle
The causal entropic (and anthropic!) principle: Physical parameters are most likely to be found in the range of values for which the total entropy production within a causally connected region is maximized.
physics  entropy  anthropic 
may 2008 by stuhlmueller
An Introduction to the Philosophy of Physics: Locality, Fields, Energy, and Mass
Must a cause be spatiotemporally local to its effect, or is action at a distance possible?
philosophy  physics  book 
march 2008 by stuhlmueller
A Quantitative Measure of Experimental Scientific Merit
Automating science, step n: Provide an entropy-based measure of usefulness for proposed experimental programs before they are performed.
science  physics  statistics  entropy 
january 2008 by stuhlmueller
Theory of Nothing
Explores the consequences of assuming that a) everything exists, and that b) the reality we observe must be compatible with our existence within that reality.
philosophy  cosmology  physics  ebook 
december 2007 by stuhlmueller
Philosophical Issues in Kolmogorov Complexity - Li, Vitanyi
Why is our world compressible? How is induction possible? What is the relation between physical and algorithmic entropy?
kolmogorov  complexity  philosophy  physics 
december 2007 by stuhlmueller
Our New Filtering Techniques Are Unstoppable!
On nonlinear filtering, cellular automata and coherent structures.
systems  statistics  physics  complexity 
september 2007 by stuhlmueller
Reflections on Relativity
A comprehensive introduction to the theory of relativity and its historical development.
physics  relativity  science 
september 2007 by stuhlmueller
Richard Feynman and The Connection Machine
An essay by Danny Hillis on Feynman's time at Thinking Machines Corporation. They built a 64,000 processor computer in the mid 1980's and then wrote software for simulating tiny cellular motion.
feynman  physics  compsci 
july 2007 by stuhlmueller
Non Existence of Quantum Mechanical Self Replicating Machine [quant-ph/0510221v1]
The process of self replication is not possible for quantum states, assuming either the linear structure of quantum theory, the principle of no signalling or conservation of entanglement is valid.
quantum  physics  replicator  biology 
june 2007 by stuhlmueller
Quantum Theory From Five Reasonable Axioms (Lucien Hardy)
The first four axioms are consistent with both quantum theory and classical probability theory. Axiom 5 (which requires that there exists continuous reversible transformations between pure states) rules out classical probability theory.
quantum  physics  math  probabilitytheory 
may 2007 by stuhlmueller
Bohm interpretation - Wikipedia, the free encyclopedia
Bohm's interpretation of quantum mechanics tries to provide a local deterministic objective description that resolves many of the paradoxes of quantum mechanics, such as Schrödinger's cat, the measurement problem and the collapse of the wavefunction.
quantum  physics  philosophy  science 
may 2007 by stuhlmueller
Is "the theory of everything'' merely the ultimate ensemble theory?
The predictions of the theory take the form of probability distributions for the outcome of experiments, which makes it testable.
physics  philosophy  tegmark  theory 
april 2007 by stuhlmueller
No cloning theorem - Wikipedia, the free encyclopedia
A result of quantum mechanics which forbids the creation of identical copies of an arbitrary unknown quantum state.
quantum  physics  cryptography 
march 2007 by stuhlmueller
Fraunhofer Quantum Computing Simulator
Web-based editor for setup, control and analysis of quantum computing simulation jobs.
quantum  computing  compsci  physics  simulation 
march 2007 by stuhlmueller
Ultimate ensemble - Wikipedia, the free encyclopedia
The only postulate in this theory of everything is that all structures that exist mathematically exist also physically.
physics  theory  tegmark 
march 2007 by stuhlmueller
Reality, causation, and the great programmer
"The vast majority of the infinite collection of programs that are written within these worlds will be buggy, ill-behaved, or even ill advised, resulting in worlds containing no self-aware-substructures at all, or perhaps even lawyers and politicians."
compsci  infinity  quantum  physics 
march 2007 by stuhlmueller
Everything List - Discussions
This is a mailing list for discussion of the idea that all possible universes exist.
schmidhuber  physics 
march 2007 by stuhlmueller
Quantum suicide - Wikipedia, the free encyclopedia
The experiment essentially involves looking at the Schroedinger's cat experiment from the point of view of the cat.
quantum  physics  science  death 
march 2007 by stuhlmueller
David Deutsch on TEDTalks
In this rare (and delightfully engaging) public appearance, David Deutsch weaves a complex and captivating argument placing the study of physics at the center of our species' survival.
ted  video  physics 
february 2007 by stuhlmueller
The Church-Turing-Deutsch Principle
Hypothesis: "A universal computing device can simulate every physical process."
physics  compsci 
february 2007 by stuhlmueller
[quant-ph/9812037] Quantum Computation
Introduces quantum computation from a theoretical computer science background. What are the origins of the quantum computational power, what are the limits?
quantum  physics  compsci 
february 2007 by stuhlmueller
Logical Depth and Physical Complexity (PDF)
An object’s “logical depth” is the time required by a universal Turing machine to generate it from an input that is algorithmically random. Under what conditions do systems undergo unbounded increase of depth in the limit of infinite space and time?
complexity  compsci  physics 
february 2007 by stuhlmueller
A Computer Scientist's View of Life, the Universe, and Everything (PDF)
Applies basic concepts of Kolmogorov compexity theory to the set of possible universes. Ideas on life, true randomness, generalization, and learning in a given universe.
schmidhuber  kolmogorov  complexity  compsci  physics 
february 2007 by stuhlmueller
From Cbits to Qbits: Teaching computer scientists quantum mechanics
How to teach mathematically literate students, with no background in physics, just enough quantum mechanics for them to understand and develop algorithms in quantum computation and quantum information theory.
quantum  physics  compsci 
february 2007 by stuhlmueller
Alpha Centauri - Space Night - Archiv
Variieren Naturkonstanten? Was ist Sedna? Was ist der Sachs-Wolfe-Effekt? Was sind Myonen? Welche Bedeutung hat die Unschärferelation? Ist Schrödingers Katze tot?
science  astronomy  physics  german  video 
february 2007 by stuhlmueller
Yeah but how fast is it? - Some thoughts about adiabatic QC
If P!=NP (overwhelmingly likely) and if quantum computers can't solve NP problems in polynomal time (likely), NP-complete problems of sufficient largeness can never be solved by anything obeying the laws of physics. (Approximations are possible.)
physics  compsci  complexity  quantum  computing 
february 2007 by stuhlmueller
Algorithmic Information Theory & the Foundations of Mathematics
It begins to look like randomness is a unifying principle. We not only see it in quantum mechanics and classical physics, but even in pure mathematics, in elementary number theory.
gödel  heisenberg  randomness  quantum  physics  compsci 
february 2007 by stuhlmueller
From Heisenberg to Gödel via Chaitin (PDF)
Conjecture: Uncertainty implies algorithmic randomness not only in mathematics, but also in physics.
heisenberg  gödel  incompleteness  compsci  physics 
february 2007 by stuhlmueller
Limits on Efficient Computation in the Physical World (Scott Aaronson)
Shows that, while some intuitions from classical computer science must be jettisoned in the light of modern physics, many others emerge nearly unscathed. Quantum computers can't solve NP-complete problems in polynomial time.
quantum  physics  computing  complexity 
january 2007 by stuhlmueller
Bekenstein bound - Wikipedia, the free encyclopedia
The Bekenstein bound imposes a limit on the entropy S or information that can be contained within a three-dimensional volume. (One reason why hypercomputing proposals fail.)
quantum  physics  entropy  information 
january 2007 by stuhlmueller
PHYS771: Quantum Computing Since Democritus
This course tries to connect quantum computing to the wider intellectual world: The measurement problem, computational complexity, cryptography, Gödel, Turing, Penrose, randomness, ...
quantum  physics  complexity  *interesting 
january 2007 by stuhlmueller
Critical Notice: Frank J Tipler (1995) "The Physics of Immortality"
On assumptions that are not proven, arguments that are not sound and general problems of the Omega Point Theory.
tipler  criticism  singularity  physics 
january 2007 by stuhlmueller
Quantum Mechanics for CS people
Quantum mechanics is what you would inevitably come up with if you started from probability theory, and then said, let's try to generalize it so that the "probabilities" can be negative numbers.
quantum  physics  math 
january 2007 by stuhlmueller
Seed: The Quantum Shortcut
Researchers explain how enzymes use quantum tunneling to speed up reactions.
biology  quantum  physics  enzymes  science 
august 2006 by stuhlmueller

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