scholarly journals Transmission and Reflection of Wave Packets by Asymmetric Semi-Harmonic Potential Barriers

2016 ◽  
Vol 698 ◽  
pp. 012030 ◽  
Author(s):  
A Jaimes-Nájera
Keyword(s):  
Wave Packets ◽  
Harmonic Potential ◽  
Potential Barriers ◽  
Transmission And Reflection

scholarly journals Klein’s paradox in the presence of a scalar potential

2019 ◽  
Vol 35 (04) ◽  
pp. 2050004
Author(s):  
B. Ainouz ◽  
S. Haouat
Keyword(s):  
Scalar Potential ◽  
Particle Creation ◽  
Critical Value ◽  
Reflection Coefficients ◽  
Potential Barriers ◽  
Transmission And Reflection Coefficients ◽  
Related Pair ◽  
The Mean ◽  
Forbidden Region ◽  
Transmission And Reflection

In this paper, we have studied the Klein’s paradox in the presence of both scalar and vector potential barriers. From the corresponding Dirac equation, we have calculated the transmission and reflection coefficients. It is shown that the presence of a scalar barrier the scalar potential widens the gap between positive and negative energies and so the forbidden region. Accordingly, the Klein’s paradox disappears when the scalar barrier exceeds a critical value. Considering the problem within the framework of quantum field theory, we have calculated the related pair creation probability, the mean number of created particles and the probability of a vacuum to remain a vacuum. Then it is shown that the scalar potential cuts down the Klein range and minimizes the creation of particles; the particle creation decreases as the scalar potential increases and ceases definitely when the scalar potential reaches the critical value.

Evolution of spin-dependent atomic wave packets in a harmonic potential

2005 ◽  
Vol 14 (4) ◽  
pp. 690-696 ◽  
Author(s):  
Wen Ling-Hua ◽  
Liu Min ◽  
Kong Ling-Bo ◽  
Chen Ai-Xi ◽  
Zhan Ming-Sheng
Keyword(s):  
Wave Packets ◽  
Harmonic Potential ◽  
Atomic Wave

Propagation properties of chirped Airy hollow Gaussian wave packets in a harmonic potential

2019 ◽  
Vol 430 ◽  
pp. 364-373 ◽  
Author(s):  
Shijie Chen ◽  
Guang Lin ◽  
Jintao Xie ◽  
Youwei Zhan ◽  
Shudan Ma ◽  
...  
Keyword(s):  
Wave Packets ◽  
Harmonic Potential ◽  
Propagation Properties ◽  
Gaussian Wave Packets

Quantum Mechanical Transmission and Reflection of Quasi-Particles at Arbitrary Potential Barriers in the Superconducting Base Transistor

1991 ◽  
Vol 30 (Part 1, No. 12B) ◽  
pp. 3911-3919 ◽  
Author(s):  
Tetsuya Yamamoto ◽  
Hiroshi Suzuki ◽  
Tatsuro Usuki ◽  
Yorinobu Yoshisato ◽  
Shoichi Nakano
Keyword(s):  
Quantum Mechanical ◽  
Mechanical Transmission ◽  
Potential Barriers ◽  
Arbitrary Potential ◽  
Transmission And Reflection

Transmission and reflection times for scattering of wave packets off tunneling barriers

1987 ◽  
Vol 36 (8) ◽  
pp. 4203-4214 ◽  
Author(s):  
E. H. Hauge ◽  
J. P. Falck ◽  
T. A. Fjeldly
Keyword(s):  
Wave Packets ◽  
Transmission And Reflection
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