Free-free emission continuum of weakly non-ideal argon plasmas

Lange, Ralph; Schlüter, D.

doi:10.1016/0022-4073(92)90085-i

Cited by 6 publications

(11 citation statements)

References 37 publications

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“…We are led to a difference equal to ∆ 1 + ∆ 2 = δz between reaching the "entrance" point x e,− (for F ) relative to the "entrance-exit" point xa (for Fa), leading to an energy uncertainty ∆E = abs(−Ip − δz) = (I b + δ), for F ≤ Fa, and with a time τ T,i (F ) = for arbitrary subatomic field strength F , hence one obtains eq (20) instead of eq. (19). We have explained so far eq (17) and eq (20), in doing so we explained the physical meaning of the symmetry consideration done above (see eq (15) and the discussion before) and we obtain from eqs (17), (20) the result obtained in eq (15):…”

Section: Total Time For Subatomic Field F < F Amentioning

confidence: 99%

“…The time reduction in τ (x i , x e,− ) for F comparing to τ (x i , xa) = 1/(2Ip) for Fa, eq (19), is a factor depending on δz (see discussion after eq (16)), because the kinetic energy experiences a change proportional to (x e,− − x i ) F < (xa − x i ) Fa. A (weaker) field F < Fa is not sufficient to compensate for the kinetic energy at the (shake-up) step, instead the electron is at the "entrance"…”

Section: Total Time For Subatomic Field F < F Amentioning

confidence: 99%

“…The factor δz (comparing to eq (19) for Fa) in the denominator results from two parts. Indeed we follow [5] in that the uncertainty is a result of the different reactions or responses of the electron to different filed strengths.…”

Section: Total Time For Subatomic Field F < F Amentioning

confidence: 99%

“…The choice of Z ef f is easy recognized for many electron system and well-known in atomic, molecular and plasma physics [18][19][20]. We take one dimensional model along the x-axis as justified by Klaiber and Yakaboylu et al [22,23].…”

Section: A Previewmentioning

confidence: 99%

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Tunneling time in attosecond experiments and the time-energy uncertainty relation

Kullie

2015

Phys. Rev. A

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In this work we present a theoretical model supported with a physical reasoning leading to a relation which performs an excellent estimation for the tunneling time in attosecond and strong field experiments, where we address the important case of the He-atom [1,2]. Our tunneling time estimation is found by utilizing the time-energy uncertainty relation and represents a quantum clock. The tunneling time is also featured as the time of passage through the barrier similarly to the Einstein's photon box Gedanken experiment. Our work tackles an important study case for the theory of time in quantum mechanics, and is very promising for the search for a (general) time operator in quantum mechanics. The work can be seen as a new fundamental step in dealing with the tunneling time in strong field and ultra-fast science, and is appealing for more elaborate treatments using quantum wave packet dynamics and especially for complex atoms and molecules.Keywords: Tunneling time in strong field and ultra-fast science, time measurement in attosecond experiments, quantum clock, time-energy uncertainty relation, time and time-operator in quantum mechanics, photon box Gedanken experiment.

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Section: Total Time For Subatomic Field F < F Amentioning

confidence: 99%

Section: Total Time For Subatomic Field F < F Amentioning

confidence: 99%

Section: Total Time For Subatomic Field F < F Amentioning

confidence: 99%

Section: A Previewmentioning

confidence: 99%

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Tunneling time in attosecond experiments and the time-energy uncertainty relation

Kullie

2015

Phys. Rev. A

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“…Since much of this type of radiation in the visible and ultraviolet is generated near the nucleus, expression (16) is believed to underestimate the radiation intensities when Z > Z eff , especially if Z ¾ 1. In studies that are not related to sonoluminescence, eVorts are known to better describe the radiation intensity if Z > 1, see for example [105,195,196]. (3) Recombination radiation.…”

Section: Extensions and Outlookmentioning

confidence: 99%

Sonoluminescence: how bubbles glow

Hammer¹,

Frommhold²

2001

J. Mod. Optics

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We review recent attempts to elucidate the phenomenon of sonoluminescence in terms of fundamental principles. We focus mainly on the processes which generate the light, but other relevant facts, such as the bubble dynamics, must also be considered for the understanding of the physics involved. Our emphasis is on single bubble sonoluminescence which in recent years has received much attention, but we also look at some of the excellent work on multiple bubble sonoluminescence and its spectral characteristics for clues. The weakly ionized gas models were recently studied most thoroughly and are remarkably successful when combined with a hydrodynamic bubble model, in terms of reproducing observed spectral shapes, intensities, optical pulse widths and the dependencies of these observables on the experimental parameters. Other radiation models, such as proton tunnelling radiation and the con ned electron model, were not combined with hydrodynamic models and/or have freely adjustable parameters so that their relevance to sonoluminescence studies is at present less critically tested.

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Sonoluminescence: How bubbles glow

Hammer¹,

Frommhold²

2001

Journal of Modern Optics

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Free-free emission continuum of weakly non-ideal argon plasmas

Cited by 6 publications

References 37 publications

Tunneling time in attosecond experiments and the time-energy uncertainty relation

Tunneling time in attosecond experiments and the time-energy uncertainty relation

Sonoluminescence: how bubbles glow

Sonoluminescence: How bubbles glow

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