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| Open AccessEmergent Sasaki-Einstein geometry and AdS/CFT
It is an outstanding question in quantum gravity how to describe the emergence of classical spacetime geometry from a quantum state. Here, the authors propose a construction in the context of the gauge/gravity correspondence, producing the classical geometry from a quantum state at the boundary of spacetime.
- Robert J. Berman
- , Tristan C. Collins
- & Daniel Persson
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| Open AccessPariah moonshine
Classifying groups is an important challenge in mathematics and has led to the identification of groups which do not belong to the main families. Here Duncan et al. introduce a type of moonshine which is a connection between these groups, number theory and potentially physics.
- John F. R. Duncan
- , Michael H. Mertens
- & Ken Ono
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| Open AccessVortex knots in tangled quantum eigenfunctions
Strings or long chains are prone to knotting. Here, the authors demonstrate that the vortex structure of quantum wavefunctions, such as that in a simple harmonic oscillator, can also contain knots, whose topological complexity can be a descriptor of the spatial order of the system.
- Alexander J. Taylor
- & Mark R. Dennis