PPT-INTERPLAY BETWEEN QUANTUM MECHANICS AND SOFT MATTER

P PINCUS PHYSICS AND MATERIALS DEPARTMENTS UNIVERSITY OF CALIFORNIA SANTA BARBARA CMMRC WASHINGTON DC SEPTEMBER 2013 OUTLINE amp SCOPE Soft condensed matter physics is generally regarded as mainly classical ħ0 because it is typically concerned with objects at the nanoscale or larger . Lagrangian. Densities. Just as there is no “derivation” of quantum mechanics from classical mechanics, there is no derivation of relativistic field theory from quantum mechanics. The “route” from one to the other is based on . 4. . Introduction to quantum treatments. 4.01. . . Outline of . the principles and the method of quantum mechanics. Why quantum mechanics?. Physics and sizes in universe. Knowledge of “classical” physics was constructed on the grounds of observed regularities of the universe accessible to . Associate Professor, EECS. MIT. Quantum Mechanics: What’s It Good For?. Some “Obvious” Things QM Is Good For. Allowing transistors and lasers to work. Helping to sell New Age books. Keeping atoms from disintegrating. Mark Williamson. m. ark.williamson@wofson.ox.ac.uk. 10.06.10. The Quantum . T. heory of Information and Computation. http://www.comlab.ox.ac.uk/activities/quantum/course/. Aims of lecture. Local hidden variable theories can be experimentally falsified.. hot atoms. Saikat. Ghosh. Arif. . Warsi, . Niharika. Singh, . Arunabh. Mukherjee. Indian Institute of Technology - Kanpur. Qubits: Superposed atomic states as a resource. Hammerer K, Sorensen A S and . P. urifying . drinking water . in . the developing world. Thomas Prevenslik. QED Radiations. Discovery Bay, Hong Kong. Isfahan University of Technology - Quantum Mechanics in Nanotechnology - October 8-9, 2014. By: Miles H. Taylor. The EPR Paradox. In 1935, physicists Albert Einstein, Boris . Podolsky. , and Nathan Rosen created a thought experiment that was supposed to show a lack of completeness in quantum mechanics, a relatively recent creation at the time. The thought experiment, later called the EPR paradox after the last names of the creators, was based upon a paradox they saw in the quantum entanglement idea of quantum mechanics regarding the fact that one cannot know observables from different sets. They began by imagining two physical systems that interact when created, so that they will be defined by a single quantum state (Blanton). In other words, one must begin by imagining two entangled particles. Even when separated, the two systems will still be described by the same wave function, no matter the distance between them, as they are still entangled. If someone measures an observable, such as the spin if the systems are photons, of one system, it “will immediately determine the measurement of the corresponding observable in the second system” (Blanton). This applies even at distances that special relativity should prohibit. Imagine that the two systems are light-years apart. According to quantum mechanics, measuring an observable in the first system forces the corresponding observable in the other system into a well-defined state immediately, despite the fact that they are not close enough to have an effect on one another. The information between the two has passed much too fast for the distance under the theory of relativity. This left two options for Einstein, . Werner. Institut . für Theoretische Physik. Leibniz Universität . Hannover. New directions in . the Foundations of Physics. Washington. April 24, 2015. Is an ontological . commitment . at the . quantum level . . Gödel-Cohen Incompleteness. and the Universe. Luis Gonzalez-Mestres. Cosmology Laboratory, John . Naisbitt. University. Belgrade and Paris. Abstract –. . What is the origin of Quantum Mechanics (QM)? Is it an ultimate principle of Physics or a property of standard particles generated at a more fundamental level?. !. Quantum Information. Mechanical Quantum Systems. Quantum Optics. Quantum Matter. 1 atom. Surface. -spin. 23 Professorial Faculty, Two Divisions. PMA Division . Physics: . 15 ( 1 UCSB). 9 theorists, 7 . De Broglie and Schrodinger . Electron microscopes. Quantum Tunneling (microscopes). Matter Waves. Everything (photons, electrons, SMU students, planets, ..) . has a probability wave - . de Broglie. What is empty space?. What is matter?.  . Homework 6 due April 10. Term paper draft due April 17. Classical world. : . "we have found portions of matter with changeless forces (indestructible qualities) and called them elements… The only changes that can remain possible in such a world are spatial changes, movements… SO at last the task of physics is to refer phenomena to inalterable attractive and repulsive forces whose intensity varies with distance. The solubility of this problem is the complete comprehensibility of nature." Helmholtz ~1890.. NS 1300. Dr. Hoge. E=mc. 2. Electromagnetic Energy. E = mc. 2. Particles and Waves. What is a quantum particle?. Photons. Electrons. What is a wave?. What is a field?. So where does this leave us?. Quantum Mechanics. Part 1. Outline. Introduction. Problems of classical physics. Black-body Radiation. experimental observations. Wien’s displacement law. Stefan – Boltzmann law. Rayleigh - Jeans. Wien’s radiation law.