Quantum interpretation of fully state‐selected rotationally inelastic collision experiments

1977 ◽  
Vol 66 (1) ◽  
pp. 59-66 ◽  
Author(s):  
Millard H. Alexander ◽  
Paul J. Dagdigian ◽  
Andrew E. DePristo
Keyword(s):  
Inelastic Collision ◽  
Quantum Interpretation

Inelastic Collision Processes of Methane and Ethane Molecules at a Pt(111) Surface Studied by Molecular Beam Scattering Techniques

1999 ◽  
Vol 38 (Part 1, No. 12A) ◽  
pp. 6910-6914 ◽  
Author(s):  
Shinjiro Yagyu ◽  
Yasunobu Kino ◽  
Toshiyuki Ikeuchi ◽  
Tomomi Hiraoka ◽  
Takahiro Kondo ◽  
...  
Keyword(s):  
Molecular Beam ◽  
Inelastic Collision ◽  
Molecular Beam Scattering ◽  
Beam Scattering ◽  
Collision Processes

Comment on an Inelastic Collision Service

1970 ◽  
Vol 38 (12) ◽  
pp. 1490-1490
Author(s):  
Charles Jacobs
Keyword(s):  
Inelastic Collision

Quantum Narratives and the Power of Rhetorical Omission

2018 ◽  
Vol 48 (1) ◽  
pp. 24-55
Author(s):  
José G. Perillán
Keyword(s):  
Quantum Theory ◽  
Scientific Community ◽  
Fundamental Principle ◽  
International Scientific Community ◽  
Physics Community ◽  
Pilot Wave ◽  
History Of ◽  
Quantum Interpretation ◽  
History Of Quantum Theory ◽  
Pedagogical Discourses

John S. Bell openly questioned the dominance of an orthodox quantum interpretation that had seemingly raised the principle of indeterminism from an epistemological question to an ontological truth in the late 1920s. He understood the inevitability of indeterminism to be a theoretical choice made by the founding architects of quantum theory, not a fundamental principle of reality necessitated by experimental facts. As a result, Bell decried the general lull in quantum interpretation debates within the physics community, and in particular, the complete omission of Louis de Broglie’s deterministic pilot wave interpretation from all theoretical and pedagogical discourses. This paper reexamines the pilot wave’s rise, abandonment, and subsequent omission in the history of quantum theory. What emerges is not a straightforward story of victimization and hegemonic marginalization. Instead, it is a story that grapples with tensions between the polyphony of individual voices and a physics community’s evolving identity and consensus in response to particular sociopolitical and scientific contexts. At the heart of these tensions sits an international scientific community transitioning from a politically fractured and intellectually divergent community to one embracing a somewhat forced pragmatic convergence around rationally reconstructed narratives and concepts like the impossibility of determinism. The story of the pilot wave’s omission gives us a window into the inherent power that theoretical choice and a congealing rhetoric of orthodoxy have on a scientific community’s consensus, pedagogical canons, and the future development of science itself.

Generation of extra and very low-frequency (ELF/VLF) radiation by ionospheric electrojet modulation using high-frequency (HF) heating waves

2002 ◽  
Vol 68 (4) ◽  
pp. 267-284 ◽  
Author(s):  
S. P. KUO
Keyword(s):  
High Frequency ◽  
Thermal Instability ◽  
Loss Rate ◽  
Inelastic Collision ◽  
Modulation Frequency ◽  
Low Frequency ◽  
Heating Power ◽  
Very Low Frequency ◽  
Hf Heating ◽  
Heating Wave

Extra and very low-frequency (ELF/VLF) wave generation by modulated polar electrojet currents is studied numerically. Through Ohmic heating by the amplitude-modulated high-frequency heating wave, the conductivity and thus the current of the electrojet are modulated accordingly to set up the ionospheric antenna current. Stimulated thermal instability, which can further enhance the electrojet current modulation, is studied. It is first analysed analytically to determine the threshold heating power for its excitation. The nonlinear evolutions of the generated ELF/VLF waves enhanced by the instability are then studied numerically. Their spectra are also evaluated. The field intensity of the emission at the fundamental modulation frequency is found to increase with the modulation frequency in agreement with the Tromso observations. The efficiency enhancement by the stimulated thermal instability is hampered by inelastic collisions of electrons with neutral particles (mainly due to vibration excitation of N2), which cause this instability to saturate at low levels. However, the electron inelastic collision loss rate drops rapidly to a low value in the energy regime from 3.5 to 6 eV. As the heating power exceeds a threshold level, significant electron heating enhanced by the instability is shown, which indeed causes a steep drop in the electron inelastic collision loss rate. Consequently, this instability saturates at a much higher level, resulting to a near step increase (of about 10–13 dB depending on the modulation wave form) in the spectral intensity of ELF radiation. The dependence of the threshold power of the HF heating wave on the modulation frequency is determined.

scholarly journals The core software framework for the LHCb Upgrade

2019 ◽  
Vol 214 ◽  
pp. 05040
Author(s):  
Concezio Bozzi ◽  
Sébastien Ponce ◽  
Stefan Roiser
Keyword(s):  
Critical Points ◽  
Inelastic Collision ◽  
Current Status ◽  
Software Framework ◽  
Collision Rate ◽  
Proton Proton ◽  
Work Program ◽  
The Core ◽  
Lhcb Detector ◽  
Many Core

The LHCb detector will be upgraded for the LHC Run 3. The new, full software trigger must be able to sustain the 30MHz proton-proton inelastic collision rate. The Gaudi framework currently used in LHCb has been re-engineered in order to enable the efficient usage of vector registers and of multi-and many-core architectures. This contribution presents the critical points that had to be tackled, the current status of the core software framework and an outlook of the work program that will address the challenges of the software trigger.

scholarly journals Consideration of analogies between magnetic and quantum notices for molecular network

2018 ◽  
Vol 16 ◽  
pp. 01006
Author(s):  
Henryk Piech ◽  
Jerzy Jelonkiewicz ◽  
Lukasz Laskowski ◽  
Magdalena Laskowska
Keyword(s):  
Magnetic Properties ◽  
Spin Glass ◽  
Transition Theory ◽  
Molecular Network ◽  
Quantum Calculation ◽  
Pragmatic Approach ◽  
Quantum Properties ◽  
Quantum Nature ◽  
Quantum Interpretation ◽  
Almost All

Magnetic properties of spin glass materials [9,13] are close to quantum interpretation in their nature description [17]. Therefore, we can look for possible kinds of analogies in process of defining theoretic and practice conventions, rules and applications of the specific characteristics in elaboration quantum calculation strategies. We have not investigated possibilities to create directly quantum calculation units and practice calculation structures like qubits, registers, gates etc. [4,18], but dealing with spin and quantum definitions and descriptions we can try to involve these notices from different domains. Such a pragmatic approach only intuitively gives chances to create the transition theory and implement it even partially. Obviously, almost all of us have heard about quantum factorization, cryptography or teleportation but it is obtained as a result of exploration casually selected quantum properties and adapting them to mathematic problems. In our approach, we carefully investigate involutions among spin and quantum nature looking at possible implementation in molecular network.

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