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We investigate tunneling ionization of a single active electron with a strong and short laser pulse, circularly polarized. With the recently proposed backpropagation method, we can compare different criteria for the tunnel exit as well as popular approximations in strong-field physics on the same footing. Thereby, we trace back discrepancies in the literature regarding the tunneling time to inconsistent tunneling exit criteria. The main source of error is the use of a static ionization potential, which is, however, time dependent for a short laser pulse. A vanishing velocity in the instantaneous field direction as tunneling exit criterion offers a consistent alternative, since it does not require the knowledge of the instantaneous binding energy. Finally, we propose a mapping technique that links observables from attoclock experiments to the intrinsic tunneling exit time.

H Ni, U Saalmann & J-M Rost

Phys. Rev. A 97, 013426 (2018)

Electron dynamics driven by light-pulse derivatives

Q-C Ning, U Saalmann & J-M Rost

Phys. Rev. Lett. 120, 033203 (2018)

Unusual dynamical effects generated through nanoplasmas

U Saalmann & J-M Rost

(2018)

Single-photon ionization in intense, stochastically fluctuating pulses

S Kumar Giri, U Saalmann & J-M Rost

J. Mod. Opt. 64, 1004 (2017)

Essential conditions for dynamic interference

M Baghery, U Saalmann & J-M Rost

Phys. Rev. Lett. 118, 143202 (2017)

Born in weak fields: Below-threshold photo-electron dynamics

J B Williams, U Saalmann, F Trinter, M Weller, M S Schöffler, P Burzynski, C Goihl, K Henrichs, C Janke, B Griffin, G Kastirke, J Neff, M Pitzer, M Waitz, Y Yang, S Zeller, T Jahnke & R Dörner

J. Phys. B 50 034002 (2017)

Tunneling ionization time-resolved by backpropagation

H Ni, U Saalmann & J-M Rost

Phys. Rev. Lett. 117, 023002 (2016)

Full counting statistics of a non-adiabatic electron pump

A Croy & U Saalmann

Phys. Rev. B 93, 165428 (2016)

Dynamical characteristics of Rydberg electrons released by a weak electric field

E Diesen, U Saalmann, M Richter, M Kunitski, R Dörner & J-M Rost

Phys. Rev. Lett. 116, 143006 (2016)

Universal pulse dependence of the low-energy structure in strong-field ionization

K Zhang, Y-H Lai, E Diesen, B E Schmidt, C I Blaga, J Xu, T T Gorman, F Légaré, U Saalmann, P Agostini, J-M Rost & L F Di Mauro

Phys. Rev. A 93, 021403(R) (2016)

Enhancing scattering images for orientation recovery with diffusion maps

M Winter, U Saalmann & J-M Rost

Opt. Express 24, 3672 (2016)

Slow electrons from clusters in strong Xray pulses

A Camacho Garibay, U Saalmann & J-M Rost

J. Phys. B 48 174003 (2015)

The envelope Hamiltonian for electron interaction with ultra-short pulses

K Toyota, U Saalmann & J-M Rost

New J. Phys. 17, 073005 (2015)

Prevailing features of Xray-induced molecular electron spectra revealed with fullerenes

A Camacho Garibay, U Saalmann & J-M Rost

Phys. Rev. Lett. 113, 083001 (2014)

Virtual single-photon transition interrupted: Time-gated optical gain and loss

J Herrmann, M Weger, R Locher, M Sabbar, P Rivière,
U Saalmann, J-M Rost, L Gallmann & U Keller

Phys. Rev. A 88, 043843 (2013)

Proton ejection from molecular hydride clusters exposed to strong X-ray pulses

P Di Cintio, U Saalmann & J-M Rost

Phys. Rev. Lett. 111, 123401 (2013)

Multiple ionization of neon by soft X-rays at ultrahigh intensity

R Guichard, M Richter, J-M Rost, U Saalmann, A A Sorokin & K Tiedtke

J. Phys. B 46, 164025 (2013)

Spatial correlations in finite samples revealed by Coulomb explosion

U Saalmann, A Mikaberidze & J-M Rost

Phys. Rev. Lett. 110, 133401 (2013)

Slow and fast multi-photon ionization of clusters in strong XUV and X-ray pulses

Ch Gnodtke, U Saalmann & J-M Rost

Chem. Phys. 414, 65 (2013)

Non-adiabatic rectification and current reversal in electron pumps

A Croy & U Saalmann

Phys. Rev. B 86, 035330 (2012)

Auger decay in the field of a positive charge

V Averbukh, U Saalmann & J-M Rost

Phys. Rev. A 85, 063405 (2012)

Massively parallel ionization of extended atomic systems

Ch Gnodtke, U Saalmann & J-M Rost

Phys. Rev. Lett. 108, 175003 (2012)

Energy bunching in soft recollisions revealed with long-wavelength few-cycle pulses

A Kästner, U Saalmann & J-M Rost

J. Phys. B 45, 074011 (2012)

Electron-energy bunching in laser-driven soft recollisions

A Kästner, U Saalmann & J-M Rost

Phys. Rev. Lett. 108, 033201 (2012)

Non-adiabatic electron pumping through interacting quantum dots

A Croy, U Saalmann, A R Hernández & C H Lewenkopf

Phys. Rev. B 85, 035309 (2012)

Coulomb explosion of uniformly charged spheroids

M Grech, R Nuter, A Mikaberidze, P Di Cintio, L Gremillet, E Lefebvre,
U Saalmann, J-M Rost & S Skupin

Phys. Rev. E 84, 056404 (2011)

Dopant induced ignition of helium nano-droplets in intense few-cycle laser pulses

S R Krishnan, L Fechner, M Kremer, V Sharma, B Fischer, N Camus, J Jha, M Krishnamurthy, T Pfeifer, R Moshammer, J Ullrich, F Stienkemeier, M Mudrich, A Mikaberidze, U Saalmann & J-M Rost

Phys. Rev. Lett. 107, 173402 (2011)

Monitoring atomic cluster expansion by high-harmonic generation

V Strelkov, U Saalmann, A Becker & J-M Rost

Phys. Rev. Lett. 107, 113901 (2011)

Coherent manipulation of charge qubits in double quantum dots

A Croy & U Saalmann

New J. Phys. 13, 043015 (2011)

Propagation of time-nonlocal quantum master equations
for time-dependent electron transport

A Croy & U Saalmann

arxiv.1103.0185 (2011)

Dynamics of photo-activated Coulomb complexes

Ch Gnodtke, U Saalmann & J-M Rost