Quantum criticality in chains of planar rotors with dipolar interactions
- URL: http://arxiv.org/abs/2401.02887v1
- Date: Fri, 5 Jan 2024 16:29:36 GMT
- Title: Quantum criticality in chains of planar rotors with dipolar interactions
- Authors: Tobias Serwatka and Pierre-Nicholas Roy
- Abstract summary: By exploring the ground state from weakly to strongly interacting rotors, we find the occurrence of a quantum phase transition between a disordered and a dipole-ordered quantum state.
We show that the nature of the ordered state changes from ferroelectric to antiferroelectric when the relative orientation of the rotor planes varies.
The observed quantum phase transitions are characterized by critical exponents and central charges which reveal different universality classes ranging from that of the (1+1)D Ising model to the 2D classical XY model.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: In this contribution we perform a density matrix renormalization group study
of chains of planar rotors interacting via dipolar interactions. By exploring
the ground state from weakly to strongly interacting rotors, we find the
occurrence of a quantum phase transition between a disordered and a
dipole-ordered quantum state. We show that the nature of the ordered state
changes from ferroelectric to antiferroelectric when the relative orientation
of the rotor planes varies and that this change requires no modification of the
overall symmetry. The observed quantum phase transitions are characterized by
critical exponents and central charges which reveal different universality
classes ranging from that of the (1+1)D Ising model to the 2D classical XY
model.
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