Charge and spin dynamics driven by ultrashort extreme broadband pulses: a theory perspective
arXiv:1603.06868 · doi:10.1016/j.physrep.2016.12.005
Abstract
This article gives an overview on recent theoretical progress in controlling the charge and spin dynamics in low-dimensional electronic systems by means of ultrashort and ultrabroadband electromagnetic pulses. A particular focus is put on sub-cycle and single-cycle pulses and their utilization for coherent control. The discussion is mostly limited to cases where the pulse duration is shorter than the characteristic time scales associated with the involved spectral features of the excitations. We work out that the pulse action amounts in essence to a quantum map between the quantum states of the system at an appropriately chosen time moment during the pulse. The influence of a particular pulse shape on the post-pulse dynamics is reduced to several integral parameters entering the expression for the quantum map. The validity range of this reduction scheme for different strengths of the driving fields is established and discussed for particular nanostructures. Acting with a periodic pulse sequence, it is shown how the system can be steered to and largely maintained in predefined states. The conditions for this nonequilibrium sustainability are worked out by means of geometric phases, which are identified as the appropriate quantities to indicate quasistationarity of periodically driven quantum systems. Demonstrations are presented for the control of the charge, spin, and valley degrees of freedom in nanostructures on picosecond and subpicosecond time scales. The theory is illustrated with several applications to one-dimensional semiconductor quantum wires and superlattices, double quantum dots, semiconductor and graphene quantum rings. Furthermore, we consider the response of strongly correlated systems to short broadband pulses and show that this case bears a great potential to unveil high order correlations while they build up upon excitations.
165 pages, 47 figures
References in corpus (41)
- The electronic properties of graphene
- Giant Intrinsic Carrier Mobilities in Graphene and Its Bilayer
- Substrate-induced band gap opening in epitaxial graphene
- Dissipationless Quantum Spin Current at Room Temperature
- Valley filter and valley valve in graphene
- Andreev reflection and Klein tunneling in graphene
- The Magnus expansion and some of its applications
- Valley Dependent Optoelectronics from Inversion Symmetry Breaking
- Sub-cycle control of terahertz high-harmonic generation by dynamical Bloch oscillations
- Efficient metallic spintronic emitters of ultrabroadband terahertz radiation
- Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
- Theory of magnon-driven spin Seebeck effect
- Real-time observation of interfering crystal electrons in high-harmonic generation
- Longitudinal Spin Seebeck Effect Free from the Proximity Nernst Effect
- Aharonov-Bohm effect and broken valley-degeneracy in graphene rings
- Generation of pure bulk valley current in graphene
- Persistent current in ballistic mesoscopic rings with Rashba spin-orbit coupling
- High-energy mid-infrared sub-cycle pulse synthesis from a parametric amplifier
- Spin states and persistent currents in mesoscopic rings: spin-orbit interactions
- Semiconductors between spin-polarized source and drain
- Decoherence of transported spin in multichannel spin-orbit coupled spintronic devices: Scattering approach to spin density matrix from the ballistic to the localized regime
- Optimal Control of Quantum Rings by Terahertz Laser Pulses
- Spin Current Generation and Detection in the Presence of AC Gate
- Alternative fidelity measure for quantum states
- Tunneling Breakdown of a Strongly Correlated Insulating State in VO Induced by Intense Multi-Terahertz Excitation
- Paraxial Theory of Direct Electro-Optic Sampling of the Quantum Vacuum
- Laser-controlled local magnetic field with semiconductor quantum rings
- Coherent cyclotron motion beyond Kohn's theorem
- Fokker-Planck approach to the theory of magnon-driven spin Seebeck effect
- Revivals, collapses and magnetic-pulse generation in quantum rings
- Dynamical invariants and nonadiabatic geometric phases in open quantum systems
- Multichannel effects in Rashba quantum wires
- Photo-induced, non-equilibrium spin and charge polarization in quantum rings
- Two-dimensional quantum rings with oscillating spin-orbit interaction strength: A wave function picture
- Analysis of electric-field-induced spin splitting in wide modulation-doped quantum wells
- Electron stripping and re-attachment at atomic centers using attosecond half-cycle pulses
- Accessing electronic correlations by half-cycle pulses and time-resolved spectroscopy
- Pulse-driven quantum dynamics beyond the impulsive regime
- Nonequilibrium charge dynamics of light-driven rings threaded by a magnetic flux
- Selective Spin Injection Controlled by Electrical way in Ferromagnet/Quantum Dot/Semiconductor system
- Polarized light bursts from kicked quantum rings
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- Generation of unipolar half-cycle pulse via unusual reflection of a single-cycle pulse from an optically thin metallic or dielectric layer
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- Tracing the nonequilibrium topological state of Chern insulators
- Qubit(s) transfer in helical spin chains
- Spectra of ultrabroadband squeezed pulses and the finite-time Unruh-Davies effect
- Multipolar, Polarization Shaped High Harmonic Generation by Intense Vector Beams
- Ultrafast dissipative spin-state dynamics triggered by X-ray pulse trains
- Tunable High Harmonic Pulses from Nanorings Swirled by Optical Vortices
- Steering skyrmions with microwave and THz electric pulses
- Subcycle tomography of quantum light
- Two-Body Kapitza-Dirac Scattering of One-Dimensional Ultracold Atoms
- Quantum teleportation by utilizing helical spin chains for sharing entanglement
- Quasiclassical theory of non-adiabatic tunneling in nanocontacts induced by phase-controlled ultrashort light pulses
- Photoelectron emission via time and phase-tailored electromagnetic fields