Matter-Driven Change of Spacetime Topology
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Matter-Driven Change of Spacetime Topology. / Ambjorn, J.; Drogosz, Z.; Gizbert-Studnicki, J.; Gorlich, A.; Jurkiewicz, J.; Nemeth, D.
In: Physical Review Letters, Vol. 127, No. 16, 161301, 12.10.2021.Research output: Contribution to journal › Letter › Research › peer-review
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TY - JOUR
T1 - Matter-Driven Change of Spacetime Topology
AU - Ambjorn, J.
AU - Drogosz, Z.
AU - Gizbert-Studnicki, J.
AU - Gorlich, A.
AU - Jurkiewicz, J.
AU - Nemeth, D.
PY - 2021/10/12
Y1 - 2021/10/12
N2 - Using Monte Carlo computer simulations, we study the impact of matter fields on the geometry of a typical quantum universe in the causal dynamical triangulations (CDT) model of lattice quantum gravity. The quantum universe has the size of a few Planck lengths and the spatial topology of a three-torus. The matter fields are multicomponent scalar fields taking values in a torus with circumference delta in each spatial direction, which acts as a new parameter in the CDT model. Changing d, we observe a phase transition caused by the scalar field. This discovery may have important consequences for quantum universes with nontrivial topology, since the phase transition can change the topology to a simply connected one.
AB - Using Monte Carlo computer simulations, we study the impact of matter fields on the geometry of a typical quantum universe in the causal dynamical triangulations (CDT) model of lattice quantum gravity. The quantum universe has the size of a few Planck lengths and the spatial topology of a three-torus. The matter fields are multicomponent scalar fields taking values in a torus with circumference delta in each spatial direction, which acts as a new parameter in the CDT model. Changing d, we observe a phase transition caused by the scalar field. This discovery may have important consequences for quantum universes with nontrivial topology, since the phase transition can change the topology to a simply connected one.
U2 - 10.1103/PhysRevLett.127.161301
DO - 10.1103/PhysRevLett.127.161301
M3 - Letter
C2 - 34723576
VL - 127
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 16
M1 - 161301
ER -
ID: 282678396