Effective Spacetime: Understanding Emergence In Effective Field Theory And Quantum Gravity
by Karen Crowther /
2016 / English / PDF
3.1 MB Download
This book discusses the notion that quantum gravity
may represent the "breakdown" of spacetime at extremely high energy
scales. If spacetime does not exist at the fundamental level, then
it has to be considered "emergent", in other words
an effective structure, valid at low energy scales. The author
develops a conception of emergence appropriate to effective
theories in physics, and shows how it applies (or could apply) in
various approaches to quantum gravity, including condensed matter
approaches, discrete approaches, and loop quantum gravity.
This book discusses the notion that quantum gravity
may represent the "breakdown" of spacetime at extremely high energy
scales. If spacetime does not exist at the fundamental level, then
it has to be considered "emergent", in other words
an effective structure, valid at low energy scales. The author
develops a conception of emergence appropriate to effective
theories in physics, and shows how it applies (or could apply) in
various approaches to quantum gravity, including condensed matter
approaches, discrete approaches, and loop quantum gravity.