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Quantum watch and i...
Quantum watch and its intrinsic proof of accuracy
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- Berholts, Marta (author)
- Uppsala universitet,Kemisk och biomolekylär fysik,Department of Physics, University of Tartu, EST-50411 Tartu, Estonia
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- Knut, Ronny (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Röntgenfysik
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- Stefanuik, Robert (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Röntgenfysik
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- Wikmark, Hampus (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Röntgenfysik
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- Saha, Susmita (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Department of Physics, Ashoka University, IN-131029 Sonipat, India,Röntgenfysik
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- Söderström, Johan, 1978- (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Röntgenfysik
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(creator_code:org_t)
- 2022-10-18
- 2022
- English.
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In: Physical Review Research. - : American Physical Society. - 2643-1564. ; 4:4
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Abstract
Subject headings
Close
- We have investigated the rich dynamics of complex wave packets composed of multiple high-lying Rydbergstates in He. A quantitative agreement is found between theory and time-resolved photoelectron spectroscopyexperiments. We show that the intricate time dependence of such wave packets can be used for investigatingquantum defects and performing artifact-free timekeeping. The latter relies on the unique fingerprint that iscreated by the time-dependent photoionization of these complex wave packets. These fingerprints determinehow much time has passed since the wave packet was formed and provide an assurance that the measured time iscorrect. Unlike any other clock, this quantum watch does not utilize a counter and is fully quantum mechanicalin its nature. The quantum watch has the potential to become an invaluable tool in pump-probe spectroscopy dueto its simplicity, assurance of accuracy, and ability to provide an absolute timestamp, i.e., there is no need to findtime zero.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Keyword
- High Harmonic generation
- Helium
- Rydberg states
- Physics with spec. in Atomic, Molecular and Condensed Matter Physics
- Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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