Light-Driven Raman Coherence as a Non-Thermal Route to Ultrafast Topology Switching

Abstract

A grand challenge underlies the entire field of topology-enabled quantum logic and information science: how to establish topological control principles driven by quantum coherence and understand the time-dependence of such periodic driving? Here we demonstrate a THz pulse-induced phase transition in Dirac materials that is periodically driven by vibrational coherence due to excitation of the lowest Raman-active mode. Above a critical field threshold, there emerges a long-lived metastable phase with unique Raman coherent phonon-assisted switching dynamics, absent for optical pumping. The switching also manifest itself by non-thermal spectral shape, relaxation slowing down near the Lifshitz transition where the critical Dirac point (DP) occurs, and diminishing signals at the same temperature that the Berry curvature induced Anomalous Hall Effect varnishes. These results, together with first-principles modeling, identify a mode-selective Raman coupling that drives the system from strong to weak topological insulators, STI to WTI, with a Dirac semimetal phase established at a critical atomic displacement controlled by the phonon pumping. Harnessing of vibrational coherence can be extended to steer symmetry-breaking transitions, i.e., Dirac to Weyl ones, with implications on THz topological quantum gate and error correction applications.

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Cited by in corpus (38)

• Topology and geometry under the nonlinear electromagnetic spotlight
• Discovery of Terahertz Second Harmonic Generation from Lightwave Acceleration of Symmetry--Breaking Nonlinear Supercurrents
• Simulating terahertz field-induced ferroelectricity in quantum paraelectric SrTiO${}_3$
• Cryogenic Magneto-Terahertz Scanning Near-field Optical Microscope (cm-SNOM)
• Light-Tunable Surface State and Hybridization Gap in Magnetic Topological Insulator MnBi${}_8$Te${}_{13}$
• Photoinduced Dirac semimetal in ZrTe5
• Topological phase transition and phonon-space Dirac topology surfaces in ZrTe${}_5$
• Adiabaticity parameters for the categorization of light-matter interaction -- from weak to strong driving
• Cavity engineering of solid-state materials without external driving
• Lightwave Terahertz Quantum Manipulation of Non-equilibrium Superconductor Phases and their Collective Modes
• A light-induced Weyl semiconductor-to-metal transition mediated by Peierls instability
• Anomalous Hall effect at the Lifshitz transition in ZrTe5
• Band Structure Driven Thermoelectric Response of Topological Semiconductor ZrTe${}_5$
• Tracking ultrafast change of multiterahertz broadband response functions in a photoexcited Dirac semimetal Cd${}_3$As${}_2$ thin film
• Expansive Open Fermi Arcs and Connectivity Changes Induced by Infrared Phonons in ZrTe5
• Highly Tunable Band Inversion in AB2X4 (A=Ge, Sn, Pb; B=As, Sb, Bi; X=Se, Te) Compounds
• Robust and tunable Weyl phases by coherent infrared phonons in ZrTe${}_5$
• Multi-Dimensional Coherent Spectroscopy of Light-Driven States and their Collective Modes in Multi-Band Superconductors
• Gate-tunable multiband transport in ZrTe5 thin devices
• Influence of local symmetry on lattice dynamics coupled to topological surface states
• Photocurrent-driven transient symmetry breaking in the Weyl semimetal TaAs
• Revealing temperature evolution of the Dirac band in ZrTe${}_5$ via magneto-infrared spectroscopy
• Pressure Effect on Band Inversion in AECd2As2
• Two-dimensional coherent spectrum of high-spin models via a quantum computing approach
• Quantum Liouville's theorem based on Haar measure
• Adaptive variational quantum computing approaches for Green's functions and nonlinear susceptibilities
• Geometric pumping and dephasing at topological phase transition
• Linear-in-Frequency Optical Conductivity over a broad range in the three-dimensional Dirac semimetal candidate Ir${}_2$In${}_8$Se
• Ultrafast switching of topological invariants by light-driven strain
• Unveiling Symmetry Instability induced by Topological Phase Transitions
• Dominant two-dimensional electron-phonon interactions in the bulk Dirac semimetal Na3Bi
• Topological States in Chevrel Phase Materials from First-principle Calculations
• Coherent Transfer of Lattice Entropy via Extreme Nonlinear Phononics in Metal Halide Perovskites
• Quantum geometry embedded in unitarity of evolution: revealing its impacts as geometric oscillation and dephasing in spin resonance and crystal bands
• Switching of an antiferromagnet controlled by spin canting in a laser-induced hidden phase
• Optical manipulation of the topological phase in ZrTe5 revealed by time- and angle-resolved photoemission
• Research on topological materials using ultrafast spectroscopy
• Light-induced shear phonon splitting and instability in bilayer graphene