Quantum Quenches of an SO(5) Pseudospin Reveal Higgs Bosons

Abstract

Controlled dynamical probe measurement of complex order parameter fluctuations may reveal its massive collective excitations. Here, we design dynamical quench protocols to excite independently all ten midgap Higgs bosons in the isotropic Balian--Werthamer state of a spinfull $p$-wave superfluid or superconductor. The analysis is based on microscopic equations of motion of an SO(5) pseudospin, an extension of the usual Bloch equation to a five dimensional space. Key to these protocols is the realization of quenches that break the rotational symmetry of the kinetic energy and exploit the irreducible representation of the angular momentum $J=2$. For perturbative quenches, we find (non-decaying) periodic oscillations in time of these Higgs modes. Experiments to realize our proposal for either superfluids or superconductors are considered.

arXiv comment6 pages, 3 figures

References in corpus (28)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Higgs Amplitude Mode in BCS Superconductors Nb${}_{1-x}$Ti${}_x$N induced by Terahertz Pulse Excitation
• Amplitude / Higgs Modes in Condensed Matter Physics
• The `Higgs' Amplitude Mode at the Two-Dimensional Superfluid-Mott Insulator Transition
• Exact SO(5) Symmetry in spin 3/2 fermionic system
• Solitons and Rabi Oscillations in a Time-Dependent BCS Pairing Problem
• Quantum Magnets under Pressure: Controlling Elementary Excitations in TlCuCl3
• Quantum quench dynamics
• Synchronization in the BCS Pairing Dynamics as a Critical Phenomenon
• Higgs Mode in Superconductors
• Theory of Anderson pseudospin resonance with Higgs mode in superconductors
• Dynamical vanishing of the order parameter in a fermionic condensate
• Higgs mode and its decay in a two dimensional antiferromagnet
• Hidden symmetry and quantum phases in spin-3/2 cold atomic systems
• Higgs mode in the d-wave superconductor Bi2Sr2CaCu2O8+x driven by an intense terahertz pulse
• Symmetry Protected Topological Superfluids and Superconductors --- From the Basics to ${}^3$He ---
• The Higgs mode in a two-dimensional superfluid
• Quantum quench in a p + i p superfluid: Winding numbers and topological states far from equilibrium
• Classification and characterization of nonequilibrium Higgs modes in unconventional superconductors
• Higgs bosons in particle physics and in condensed matter
• An SO(5) model of p-wave superconductivity and ferromagnetism
• Direct observation of the Higgs amplitude mode in a two-dimensional quantum antiferromagnet near the quantum critical point
• Light Higgs channel of the resonant decay of magnon condensate in superfluid ${}^3$He-B
• Symmetry Protected Topological Superfluid ${}^3$He-B
• Field-Orientation Dependence of Low-Energy Quasiparticle Excitations in the Heavy-Electron Superconductor UBe13
• On the Excitations of a Balian-Werthamer Superconductor
• Integrable Model of Topological SO(5) Superfluidity