# Topological Higgs amplitude modes in strongly interacting superfluids

@article{Wang2021TopologicalHA, title={Topological Higgs amplitude modes in strongly interacting superfluids}, author={Junsen Wang and Youjin Deng and Wei-mou Zheng}, journal={Physical Review A}, year={2021} }

Junsen Wang, Youjin Deng, and Wei Zheng∗ Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China and CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China (Dated: September 17, 2021)

## References

SHOWING 1-10 OF 114 REFERENCES

### Oscillating superfluidity of bosons in optical lattices.

- PhysicsPhysical review letters
- 2002

A modified coherent states path integral is introduced to describe both phases of an optical lattice undergoing a sudden parameter change from the Mott to superfluid phase and the saddle point theory yields collective oscillations of the uniform superfluid order parameter.

### Mott-insulator–to–superfluid transition in the Bose-Hubbard model: A strong-coupling approach

- Physics
- 2005

We present a strong-coupling expansion of the Bose-Hubbard model which describes both the superfluid and the Mott phases of ultracold bosonic atoms in an optical lattice. By performing two successive…

### Higgs mode in a two-dimensional superfluid.

- PhysicsPhysical review letters
- 2012

Simulations of a trapped system of ultracold (87)Rb atoms demonstrate that the low-frequency resonance is lost for typical experimental parameters, while the characteristic frequency for the onset of a strong response is preserved.

### The Higgs mode in disordered superconductors close to a quantum phase transition

- Physics
- 2015

The Higgs mechanism is best known for generating mass for subatomic particles. Less well-known is that the idea originated in the study of superconductivity, and can be tested in the laboratory.

### Higgs Mode in Superconductors

- PhysicsAnnual Review of Condensed Matter Physics
- 2020

When the continuous symmetry of a physical system is spontaneously broken, two types of collective modes typically emerge: the amplitude and the phase modes of the order-parameter fluctuation. For…

### Dynamical properties of ultracold bosons in an optical lattice

- Physics
- 2007

We study the excitation spectrum of strongly correlated lattice bosons for the Mott-insulating phase and for the superfluid phase close to localization. Within a Schwinger-boson mean-field approach…

### The ‘Higgs’ amplitude mode at the two-dimensional superfluid/Mott insulator transition

- PhysicsNature
- 2012

This work experimentally finds and study a Higgs mode in a two-dimensional neutral superfluid close to a quantum phase transition to a Mott insulating phase and unambiguously identifies the mode by observing the expected reduction in frequency of the onset of spectral response when approaching the transition point.

### Amplitude/Higgs Modes in Condensed Matter Physics

- Physics
- 2014

The order parameter and its variations in space and time in many different states in condensed matter physics at low temperatures are described by the complex function Ψ(r, t). These states include…

### Interaction-induced topological Bogoliubov excitations in a spin-orbit-coupled Bose-Einstein condensate

- Physics
- 2021

We study topologically non-trivial excitations of a weakly interacting, spin-orbit coupled BoseEinstein condensate in a two-dimensional square optical lattice, a system recently realized in…

### Hidden charge-conjugation, parity, and time-reversal symmetries and massive Goldstone (Higgs) modes in superconductors

- PhysicsPhysical Review B
- 2018

A massive Goldstone (MG) mode, often referred to as a Higgs amplitude mode, is a collective excitation that arises in a system involving spontaneous breaking of a continuous symmetry, along with a…