# Quantum phase transitions

@article{Vojta2003QuantumPT, title={Quantum phase transitions}, author={Thomas Vojta}, journal={Reports on Progress in Physics}, year={2003}, volume={66}, pages={2069-2110} }

In recent years, quantum phase transitions have attracted the interest of both theorists and experimentalists in condensed matter physics. These transitions, which are accessed at zero temperature by variation of a non-thermal control parameter, can influence the behaviour of electronic systems over a wide range of the phase diagram. Quantum phase transitions occur as a result of competing ground state phases. The cuprate superconductors which can be tuned from a Mott insulating to a d-wave…

## 90 Citations

### Why first order quantum phase transitions are interesting

- Physics
- 2005

It is frequently argued that only second order phase transitions at T = 0 deserve to be called quantum phase transitions, while first order quantum phase transitions are a contradiction in terms.…

### Quantum Phase Transitions with Parity-Symmetry Breaking and Hysteresis.

- PhysicsNature physics
- 2016

This work reports for the first time the experimental observation of the full quantum phase diagram across a transition where the spatial parity symmetry is broken, and shows the robustness of the asymmetric state against controlled energy mismatch between the two wells.

### Fermion condensation quantum phase transition versus conventional quantum phase transitions

- Physics
- 2004

### Signature of a continuous quantum phase transition in non-equilibrium energy absorption: Footprints of criticality on higher excited states

- PhysicsScientific reports
- 2015

Signature of a quantum critical point manifested in strongly out-of-equilibrium states with finite energy density with respect to the ground state and extensive (subsystem) entanglement entropy, generated by an external pulse is reported.

### Impurity quantum phase transitions

- Physics
- 2006

Recent work is reviewed on continuous quantum phase transitions in impurity models, both with fermionic and bosonic baths – these transitions are interesting realizations of boundary critical…

### Observation of a quantum phase transition in the quantum Rabi model with a single trapped ion

- PhysicsNature communications
- 2021

An experimental demonstration of a QPT in the QRM using a 171Yb+ ion in a Paul trap and clear evidence of the phase transition via adiabatic tuning of the coupling between the ion and its spatial motion is observed.

### Quantum phase transitions in coupled atom-photon systems

- Physics
- 2017

Quantum many-body phase transitions have attracted a great deal of theoretical and experimental study in both naturally-occurring systems like those in condensed matter and man-made systems created…

### Excited-state quantum phase transitions in Kerr nonlinear oscillators

- PhysicsPhysical Review A
- 2020

Excited-state quantum phase transitions (ESQPTs) generalize the concept of quantum phase transitions to excited levels. Here we investigate how such ESQPTs can emerge in Kerr nonlinear oscillators,…

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