Скачать или смотреть Quantum Reality via Late Time Photodetection by Adrian Kent

21 November 2016 to 10 December 2016
VENUE
Ramanujan Lecture Hall, ICTS Bangalore
Quantum Theory has passed all experimental tests, with impressive accuracy. It applies to light and matter from the smallest scales so far explored, up to the mesoscopic scale. It is also a necessary ingredient for understanding the evolution of the universe. It has given rise to an impressive number of new technologies. Yet it suffers from internal problems of consistency. On top of this, its unification with general relativity is still problematic, and no fully satisfactory quantum theory of gravity yet exists.

This program will explore the current state of the art and future perspectives in the foundations of quantum theory, also in connection with its unification with general relativity. It consists of a two-week school, followed by a discussion meeting. The topics to be covered in the school include:

School 1st Week - Theory: The measurement problem and its proposed solutions, Role of gravity in wave function collapse, Weak measurements, Quantum Measure and the Born rule, Trace Dynamics and Non-Markovian Dynamics.

School 2nd Week - Experiment: Matter wave interferometry, optomechanics experiments, entanglement experiments, tests of decoherence and experimental tests of the quantum measure.

A Discussion Meeting will be held during the 3rd week. During this meeting, the following questions will be addressed: What is the state of the art in experiments testing quantum theory with light, and with matter? What are the conceptual implications of gravity applied to quantum systems? What are the limitations imposed by, or new possibilities allowed by entanglement in relativistic quantum systems? How can we arrive at a coherent description of the early universe? Do we need a deeper level theory, which goes beyond quantum theory?

More information about the program will be added in the near future.

REGISTRATION DEADLINE
16 July 2016
CONTACT US
fpqp ictsresin
PROGRAM LINK
https://www.icts.res.in/program/fpqp2016

Table of Contents (powered by https://videoken.com)
0:00:00 CENTRE THEORETICAL SCIENCES
0:00:04 ICTS
0:00:11 Quantum Reality via Late Time Photodetection
0:00:49 Quantum reality? Is that a fancy way of speaking about the measurement problem?
0:02:14 What counts as "solving the quantum reality problem". Here's at least a reasonable first ambition:
0:02:52 Comment on block universes
0:05:43 Objection: But we're in no position to solve the quantum reality problem!
0:07:55 Anyway, why look for a mathematically precise description of an objective physical reality?
0:09:21 "Real world interpretations" of quantum theory (AK 2007,2013, 2014, 2016)
0:10:48 Project: a "real world" is defined mathematically by a possible outcome of an appropriately chosen fictional measurement on a state unitarily evolved from initial state on initial hypersurface So to a final state on a far future spacelike hypersurface S.
0:12:09 Developing these ideas with a photon environment in Minkowski space
0:13:44 Note that on S' can be calculated from yo on by the unitary evolution law
0:15:26 Note that this follows from standard unitary quantum theory and the Born rule:
0:20:11 A very simple toy model
0:21:08 A very simple toy model (cont.)
0:25:06 More realistic models
0:26:52 Disclaimer and comment
0:28:11 Postulates for Photon wave function models
0:29:09 Example: two level cascade decay
0:29:38 Example: object position collapsed by photon emitted from atom
0:34:23 Are our asymptotic assumptions reasonable?
0:36:33 Do they give physically sensible pictures of quasiclassical physics in the model's beables?
0:39:44 What sort of picture of quantum theory and nature emerges if these ideas are on the right lines?
0:40:59 In a Pusey-Barrett-Rudolph experiment, the beables at times up to the experiment don't
0:41:32 Comment on generalizations of quantum theory (AK in Physics and the Early Universe,
0:42:32 Cosmological implications
0:42:49 Distinctive features