Quantum tunneling and information entropy in a double square well potential: The ammonia molecule
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چکیده
منابع مشابه
Quantum Tunneling and Caustics under Inverse Square Potential
We examine the quantization of a harmonic oscillator with inverse square potential V (x) = (mω/2)x + g/x on the line −∞ < x < ∞. We find that, for 0 < g < 3h̄/(8m), the system admits a U(2) family of inequivalent quantizations allowing for quantum tunneling through the infinite potential barrier at x = 0. These are a generalization of the conventional quantization applied to the Calogero model i...
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For a symmetrical quantum double square well potential, we find analytical expressions satisfied by the quantized energies. Graphical or numerical solutions of the former relations allow us to calculate normalization constants and construct the first eight solutions of the Schrödinger equation. With these exact solutions, we analyze quantum tunneling across a potential barrier and compare our r...
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Here, we study the resonant photonic states of photonic double quantum well (PDQW) heterostructures composed of two different photonic crystals. The heterostructure is denoted as B/A/B/A/B, where photonic crystals A and B act as photonic wells and barriers, respectively. The resulting band structure causes photons to become confined within the wells, where they occupy discrete quantized states....
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We present a low-temperature ~mK! magnetotransport study, using intense pulsed magnetic fields to 50 T, of two double GaAs quantum well, triple AlAs barrier resonant tunneling structures, which demonstrates the critical influence of the second quantum well on the tunneling behavior. We show that charge accumulation in the first well, and thus the overall tunneling characteristic, is controlled ...
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The measurements of the spectral intensity of the current fluctuations in double-barrier quantum well resonant tunneling diodes as a function of temperature and bias current are reported. Two types of devices were studied: one with AlAs barriers and GaAs well and contact regions, and the other has Alo,,Gae,As barriers. The frequency range covered is 1 Hz-100 kHz and the temperature range is 78-...
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ژورنال
عنوان ژورنال: Physics Letters A
سال: 2014
ISSN: 0375-9601
DOI: 10.1016/j.physleta.2013.12.004