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DEFINITION. “Metamaterials are artificial structures with unusual and superior properties that come from their carefully designed building blocks -- also called meta-atoms.” (Programmable matter). https://lnkd.in/eD7iFAGi View in LinkedIn

THE NEED. “The accurate description of light interaction with individual meta-atoms and their small clusters is of high interest to the nanophotonics community as it opens a way for effective engineering the nanophotonic structures with predesigned optical properties.” https://lnkd.in/e5fJZNfb View in LinkedIn

THE THESIS. “I will defend a variant of the traditional reading of Bohr in which (1) the answer to what an object is (quantum or classical) depends on the experimental context; and (2) in principle, any physical system can be treated quantum-mechanically but not all systems can be treated that way at the same time.” https://lnkd.in/eauD5rnp View in LinkedIn

“Snails usually have a spiral-shaped shell which is wound around a spindle. This is the snail shell which they retract their soft bodies into when there is danger. Because of this, they are asymmetrical, and this asymmetry is mirrored inside their bodies. The snail shell is al- ways constructed in the same way. The direction of the spiral is typi- cal for a particular species.” https://lnkd.in/e63P9ske View in LinkedIn

BOHR’S POSITION. “Recently, however, a consensus seems to be emerging among careful commentators on Bohr to the effect that he, after all, did subscribe to some version of quantum fundamentalism.” https://lnkd.in/eauD5rnp View in LinkedIn

TWO WORLDS. “Bohr’s conception of quantum mechanics has traditionally been seen as opposed to such a view, not least because of his insistence on the necessity of the concepts of classical physics in the account of quantum phenomena.” https://lnkd.in/eauD5rnp View in LinkedIn

MICRO TO MACRO. “But if everything is quantum then superpositions at the microscopic level become “amplified” to the macro level, and there should thus, for instance, be apparatus pointers in various positions at the same time. Clearly this contradicts ordinary experience.” https://lnkd.in/eauD5rnp View in LinkedIn

INTERFERENCE PATTERNS. “For our purposes, superpositions may be taken to roughly correspond to objects being at different places at the same time. Such superpositions are essential at the microscopic level, e.g., in the explanation of the interference pattern seen in the famous double slit experiment.” https://lnkd.in/eauD5rnp View in LinkedIn

DEFINITION. “Superposition is the ability of a quantum system to be in multiple states at the same time until it is measured. In the double-slit experiment, “Each photon not only goes through both slits; it simultaneously takes every possible trajectory en route to the photographic plate.” https://lnkd.in/ejXRbmr6 View in LinkedIn

QUANTUM MEASUREMENT PROBLEM. “Stated briefly, the problem is that if everything, including measurement apparatuses, is quantum (and correctly described by Schrödinger’s equation), then there ought to be superpositions in the measurement outcomes.” https://lnkd.in/eauD5rnp View in LinkedIn