Signatures of under-the-barrier dynamics in a tunneling electron wavepacket

Signatures of under-the-barrier dynamics in a tunneling electron wavepacket | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Signatures of under-the-barrier dynamics in a tunneling electron wavepacket Karen Z. Hatsagortsyan This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4823651/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 26 Nov, 2024 Read the published version in Communications Physics → Version 1 posted You are reading this latest preprint version Abstract The formation of the electron wavepacket in strong field tunneling ionization is investigated. We examine the role of the under-the-barrier recollisions in shaping the phase of the photoelectron wavepacket, which in particular, is responsible for the tunneling time delay. A general analytical relationship between the phase of the tunneled electron wavepacket and the tunneling rate is established. We demonstrate the enhancement of the amplitude of the recolliding path and the wavepacket phase shift due to the Coulomb field effect of the atomic potential, which counteracts the lateral spreading of the tunneling wavepacket during the sub-barrier propagation. Our analysis employs the dressed bound state in the laser field in the adiabatic approximation. The insight gained from our findings will facilitate the free electron wavepacket synthesis via strong field ionization in sculptured laser fields. Physical sciences/Physics/Atomic and molecular physics/Attosecond science Physical sciences/Optics and photonics/Optical physics/Ultrafast photonics Full Text Additional Declarations There is NO Competing Interest. Cite Share Download PDF Status: Published Journal Publication published 26 Nov, 2024 Read the published version in Communications Physics → Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4823651","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":335318656,"identity":"d36a67a6-bdba-4ec7-b033-8e6a6d09df75","order_by":0,"name":"Karen Z. 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