Quantum dynamics of bond breaking in a dissipative environment: Indirect and direct photodesorption of neutrals from metals

We consider a non-Hermitian Hamiltonian in order to effectively describe a two-level system (TLS) coupled to a generic dissipative environment. The total Hamiltonian of the model is obtained by adding a general anti-Hermitian part, depending on four parameters, to the Hermitian Hamiltonian of a tunneling TLS. The time evolution is formulated and derived in terms of the normalized density operator of the model, different types of decays are revealed and analyzed. In particular, the population difference and coherence are defined and calculated analytically. We have been able to mimic various physical situations with different properties, such as dephasing, vanishing population difference and purification.

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Dissipative Quantum Dynamics in 2D: Anisotropic Dissipation and Selective Bond Breaking in Surface Photochemistry

Physical Review Letters ◽

10.1103/physrevlett.86.1805 ◽

2001 ◽

Vol 86 (9) ◽

pp. 1805-1808 ◽

Cited By ~ 14

Author(s):

Shiwu Gao ◽

Johan Strömquist ◽

B. I. Lundqvist

Keyword(s):

Quantum Dynamics ◽

Bond Breaking

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Large scale quantum dynamics investigations on the sensing mechanism of H2O, acetone, NO2 and O3 adsorption on the (MA)2Pb(SCN)2I2 surface

Physical Chemistry Chemical Physics ◽

10.1039/c9cp02703c ◽

2019 ◽

Vol 21 (38) ◽

pp. 21223-21235 ◽

Cited By ~ 3

Author(s):

Bing Zhang ◽

Shijie Zhou ◽

Lei Tong ◽

Yinjie Liao ◽

Juxia Yi ◽

...

Keyword(s):

Charge Transfer ◽

Quantum Dynamics ◽

Large Scale ◽

Bond Breaking ◽

Dynamical Processes ◽

Sensing Mechanism ◽

Perovskite Materials

The sensing mechanism of perovskite materials is described quantitively via bond breaking/formation and charge transfer analyses along with the dynamical processes.

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Quantum dynamics of a two-state system in a dissipative environment

Physical Review B ◽

10.1103/physrevb.43.5397 ◽

1991 ◽

Vol 43 (7) ◽

pp. 5397-5418 ◽

Cited By ~ 96

Author(s):

Ping Ao ◽

Jo/rgen Rammer

Keyword(s):

Quantum Dynamics ◽

State System ◽

Dissipative Environment

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Multidimensional vibrational quantum dynamics of CO–heme compounds: ultrafast IVR mediated Fe–CO bond-breaking after CO excitation?

Chemical Physics Letters ◽

10.1016/j.cplett.2004.12.012 ◽

2005 ◽

Vol 402 (1-3) ◽

pp. 48-53 ◽

Cited By ~ 16

Author(s):

O. Kühn

Keyword(s):

Quantum Dynamics ◽

Bond Breaking

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Atomistic simulation of the uniaxial compression of black phosphorene nanotubes

Vietnam Journal of Mechanics ◽

10.15625/0866-7136/10982 ◽

2018 ◽

Cited By ~ 1

Author(s):

Van-Trang Nguyen ◽

Minh-Quy Le

Keyword(s):

Finite Element Method ◽

Molecular Dynamics ◽

Finite Element ◽

Uniaxial Compression ◽

Critical Stress ◽

Atomistic Simulation ◽

Critical Strain ◽

Bond Breaking ◽

Black Phosphorene ◽

Weber Potential

We study through molecular dynamics finite element method with Stillinger-Weber potential the uniaxial compression of (0, 24) armchair and (31, 0) zigzag black phosphorene nanotubes with approximately equal diameters. Young's modulus, critical stress and critical strain are estimated with various tube lengths. It is found that under uniaxial compression the (0, 24) armchair black phosphorene nanotube buckles, whereas the failure of the (31, 0) zigzag one is caused by local bond breaking near the boundary.

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THE NOTHING THAT REALLY IS!

JOURNAL OF ADVANCES IN PHYSICS ◽

10.24297/jap.v12i1.172 ◽

2016 ◽

Vol 12 (1) ◽

pp. 4172-4177

Author(s):

Abdul Malek

Keyword(s):

Quantum Dynamics ◽

Theoretical Physics ◽

Historical Evolution ◽

Proper Understanding ◽

Physical Universe ◽

Wave Particle Duality ◽

Negative Effect ◽

Materialist Interpretation

The denial of the existence of contradiction is at the root of all idealism in epistemology and the cause for alienations.Â This alienation has become a hindrance for the understanding of the nature and the historical evolution mathematics itself and its role as an instrument in the enquiry of the physical universe (1).Â A dialectical materialist approach incorporatingÂ the role of the contradiction of the unity of the opposites, chance and necessity etc., can provide a proper understanding of the historical evolution of mathematics andÂ may ameliorate Â the negative effect of the alienation in modern theoretical physics and cosmology. The dialectical view also offers a more plausible materialist interpretation of the bewildering wave-particle duality in quantum dynamics (2).

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