Quantum information theoretic ideas, such as quantum entanglement, have
recently played very important roles in various subjects of theoretical
physics. In condensed matter physics, the entanglement entropy and spectrum have been successfully employed as quantum order parameters of many-body
systems with complicated ground states such as those in topological phases.
In particle physics, basic properties of the entanglement entropy have
revealed fundamental aspects of quantum field theories such as the C- and
F-theorem. In string theory and general relativity, we can interpret the
entanglement entropy geometrically in the light of holographic principle.
Moreover, it has been suggested that the mechanics of AdS/CFT correspondence
can be understood as that of entanglement renormalization, a special example
of tensor networks. These suggest that spacetimes in gravity may emerge from bits of quantum
entanglement. In addition, recent progresses on the black hole information
problem tell us that quantum information theory will provide crucial ideas
to understand quantum gravity.
To explore these various interesting directions, we would like to enhance
entangled discussions among researchers in quantum information theory,
condensed matter physics and string theory during this conference. This conference will be held during the YITP long term workshop ``Quantum Information in String Theory and Many-body Systems''.
YKIS 2016 conference is financially supported by Yukawa Memorial Foundation.