The attoclock and the tunnelling time debate

Abstract

Attosecond angular streaking, also known as the "attoclock", employs a short elliptically polarized laser pulse to tunnel ionize an electron from an atom or a molecule and to put a time stamp on this process by deflecting the photoelectron in the angular spatial direction. This deflection can be used to evaluate the time the tunneling electron spends under the classically inaccessible barrier and to determine whether this time is finite. In this review, we examine the latest experimental and theoretical findings and present a comprehensive set of evidence supporting the zero tunneling time scenario.

24 pages, 11 figures

References in corpus (4)

• Delay in atomic photoionization
• Attoclock revisited on electron tunnelling time
• Evolution of the transverse photoelectron momentum distribution for atomic ionization driven by a laser pulse with varying ellipticity
• Orientation Dependent Dissociative Ionization of H${}_2$ in Strong Elliptic Laser Fields: Modification of the release time through molecular orientation

Cited by in corpus (26)

• Theory of Subcycle Linear Momentum Transfer in Strong-Field Tunneling Ionization
• Quantum Battles in Attoscience -- Tunnelling
• The Application of Tailored Fields for Studying Chirality and Symmetry
• Attosecond Ionization Time Delays in Strong-Field Physics
• Reconciling conflicting approaches for the tunneling time delay in strong field ionization
• Nondipole effects in tunneling ionization by intense laser pulses
• Quantum interference in strong-field ionization by a linearly polarized laser pulse, and its relevance to tunnel exit time and momentum
• Ellipticity-dependent sequential over-barrier ionization of cold rubidium
• Photoelectron momentum distributions in the strong-field ionization of atomic hydrogen by few-cycle elliptically polarized optical pulses
• Enhancing spin polarization using ultrafast angular streaking
• Energy-band echoes: Time-reversed light emission from optically driven quasiparticle wavepackets
• The role of reflections in the generation of a time delay in strong field ionization
• Sub-barrier recollisions and the three classes of tunneling time delays in strong-field ionization
• Enhanced chiral-sensitivity of Coulomb-focused electrons in strong field ionization
• Photoionization of aligned excited states in neon by attosecond laser pulses
• Superluminal tunneling times without superluminal signaling: Fading of the MacColl-Hartman effect at early times
• Control of Arrival Time using Structured Wave Packets
• Resonant photoionization and time delay
• Tunneling time in coupled-channel systems
• Theory for Fourier-limited attosecond pulse generation in solids
• The role of conjugacy in the dynamics of time of arrival operators
• Time dispersion in bound states
• Magnetic Dichroism in Few-Photon Ionization of Polarized Atoms
• Non-adiabatic Strong Field Ionization of Atomic Hydrogen
• Time- and angle-resolved photoelectron spectroscopy of strong-field light-dressed solids: prevalence of the adiabatic band picture
• Quasiclassical theory of non-adiabatic tunneling in nanocontacts induced by phase-controlled ultrashort light pulses