Towards atomic-resolution quantum measurements with coherently-shaped free electrons
arXiv:2011.00348 · doi:10.1103/PhysRevLett.126.233403
Abstract
Free electrons provide a powerful tool to probe material properties at atomic-scale spatial resolution. Recent advances in ultrafast electron microscopy enable the manipulation of free electron wavefunctions using laser pulses. It would be of great importance if one could combine the spatial resolution of electron probes with the ability of laser pulses to probe coherent phenomena in quantum systems. To this end, we propose a novel technique that leverages free electrons that are coherently-shaped by laser pulses to measure quantum coherence in materials. Developing a quantum theory of electron-qubit interactions in materials, we show how the energy spectrum of laser-shaped electrons enables measuring the qubit Block-sphere state and decoherence time (T2). Finally, we present how such shaped electrons can detect and quantify superradiance from multiple qubits. Our scheme could be implemented in an ultrafast transmission electron microscope (UTEM), opening the way towards the full characterization of the state of quantum systems at atomic-scale resolution.
arXiv comment6 main text sections and 8 SM sections, 4 main text figures and 2 SM figures
References in corpus (29)
- 2D materials and van der Waals heterostructures
- Quantum Computation with Quantum Dots
- Optical excitations in electron microscopy
- Solid-state electronic spin coherence time approaching one second
- Light-matter interactions with photonic quasiparticles
- Probing the photonic local density of states with electron energy loss spectroscopy
- Attosecond Electron Pulse Trains and Quantum State Reconstruction in Ultrafast Transmission Electron Microscopy
- Electron Beam Spectroscopy for Nanophotonics
- Coherent interaction between free electrons and a photonic cavity
- From attosecond to zeptosecond coherent control of free-electron wave functions using semi-infinite light fields
- Entanglements of electrons and cavity-photons in the strong coupling regime
- Ultrafast Generation and Control of an Electron Vortex Beam via Chiral Plasmonic Near Fields
- Ponderomotive generation and detection of attosecond free-electron pulse trains
- Observation of the Stimulated Quantum Cherenkov Effect
- Ramsey-type phase control of free electron beams
- Optical control of one and two hole spins in interacting quantum dots
- Three stage decoherence dynamics of electron spin qubits in an optically active quantum dot
- Probing Quantum Optical Excitations with Fast Electrons
- Coherent optical control of the spin of a single hole in a quantum dot
- Theory of fast optical spin rotation in a quantum dot based on geometric phases and trapped states
- meV resolution in laser-assisted energy-filtered transmission electron microscopy
- Quantum entanglement and modulation enhancement of free-electron-bound-electron interaction
- Spontaneous and Stimulated Emissions of Quantum Free-Electron Wavepackets - QED Analysis
- Quantum Fingerprints in Higher Order Correlators of a Spin Qubit
- A Quantum Klystron -- Controlling Quantum Systems with Modulated Electron Beams
- Role of the kinematics of probing electrons in electron energy-loss spectroscopy of solid surfaces
- Electron energy-loss spectroscopy of quasi-two-dimensional crystals: Beyond the energy-loss functions formalism
- Room Temperature Quantum Coherent Revival in an Ensemble of Artificial Atoms
- Ramsey fringes in a room temperature quantum dot semiconductor optical amplifier
Cited by in corpus (25)
- Quantum entanglement and modulation enhancement of free-electron-bound-electron interaction
- Quantum-coherent light-electron interaction in an SEM
- Free Electrons Can Induce Entanglement Between Photons
- Super- and subradiance by entangled free particles
- Complete Excitation of Discrete Quantum Systems by Single Free Electrons
- Electron Pulse Compression with Optical Beat Note
- Free-Electron Ramsey-Type Interferometry for Enhanced Amplitude and Phase imaging of Nearfields
- Free-electron interactions with photonic GKP states: universal control and quantum error correction
- Quantum interference between fundamentally different processes is enabled by shaped input wavefunctions
- Atomic Floquet physics revealed by free electrons
- Optical Polarization Analogs in Inelastic Free Electron Scattering
- Imaging the field inside nanophotonic devices
- Quantum Nanophotonics with Energetic Particles:X-rays and Free Electrons
- Transverse Recoil Imprinted on Free-Electron Radiation
- Ultrafast non-destructive measurement of the quantum state of light using free electrons
- Superradiant Electron Energy Loss Spectroscopy
- Unitary Two-State Quantum Operators Realized By Quadrupole Fields in the Electron Microscope
- Double-superradiant cathodoluminescence
- The Synthetic Hilbert Space of Laser-Driven Free-Electrons
- A quantum logic gate for free electrons
- Scattering of ultrashort electron wave packets: optical theorem, differential phase contrast and angular asymmetries
- Steady-State Coherences under Partial Collective non-Markovian Decoherence
- Scattering-asymmetry control with ultrafast electron wave packet shaping
- Quantum state preparation and readout with modulated electrons
- Quantum states interrogation using a pre-shaped free electron wavefunction