Hints from a number of different approaches to quantum gravity point to a phenomenon of "spontaneous dimensional reduction" to two spacetime dimensions near the Planck scale. I examine the physical meaning of the term "dimension" in this context, summarize the evidence for dimensional reduction, and discuss possible physical explanations
We explore the cosmological implications of a mechanism found in several approaches to quantum gravi...
We explore the cosmological implications of a mechanism found in several approaches to quantum gravi...
We adopt a framework where quantum gravity's dynamical dimensional reduction of spacetime at short d...
A number of very different approaches to quantum gravity contain a common thread, a hint that spacet...
If gravity is asymptotically safe, operators will exhibit anomalous scaling at the ultraviolet fixed...
If gravity is asymptotically safe, operators will exhibit anomalous scaling at the ultraviolet fixed...
If gravity is asymptotically safe, operators will exhibit anomalous scaling at the ultraviolet fixed...
Abstract. Over the past few years, evidence has begun to accumulate suggesting that spacetime may un...
A viable quantum theory of gravity is one of the biggest challenges physicists are facing. We discus...
We measure the spectral dimension of universes emerging from nonperturbative quantum gravity, defin...
We measure the spectral dimension of universes emerging from nonperturbative quantum gravity, define...
Abstract. A series of old and recent theoretical observations suggests that the quanti-zation of gra...
The requirement that physical phenomena associated with gravitational collapse should be duly reconc...
Results from a number of different approaches to quantum gravity suggest that the effective dimensio...
Results from a number of different approaches to quantum gravity suggest that the effective dimensio...
We explore the cosmological implications of a mechanism found in several approaches to quantum gravi...
We explore the cosmological implications of a mechanism found in several approaches to quantum gravi...
We adopt a framework where quantum gravity's dynamical dimensional reduction of spacetime at short d...
A number of very different approaches to quantum gravity contain a common thread, a hint that spacet...
If gravity is asymptotically safe, operators will exhibit anomalous scaling at the ultraviolet fixed...
If gravity is asymptotically safe, operators will exhibit anomalous scaling at the ultraviolet fixed...
If gravity is asymptotically safe, operators will exhibit anomalous scaling at the ultraviolet fixed...
Abstract. Over the past few years, evidence has begun to accumulate suggesting that spacetime may un...
A viable quantum theory of gravity is one of the biggest challenges physicists are facing. We discus...
We measure the spectral dimension of universes emerging from nonperturbative quantum gravity, defin...
We measure the spectral dimension of universes emerging from nonperturbative quantum gravity, define...
Abstract. A series of old and recent theoretical observations suggests that the quanti-zation of gra...
The requirement that physical phenomena associated with gravitational collapse should be duly reconc...
Results from a number of different approaches to quantum gravity suggest that the effective dimensio...
Results from a number of different approaches to quantum gravity suggest that the effective dimensio...
We explore the cosmological implications of a mechanism found in several approaches to quantum gravi...
We explore the cosmological implications of a mechanism found in several approaches to quantum gravi...
We adopt a framework where quantum gravity's dynamical dimensional reduction of spacetime at short d...