Quantum tunnelling of a molecule with a single bound state .

機譯：單束縛態分子的量子隧穿。

獲取原文

獲取原文并翻譯 | 示例

頁面導航

摘要
著錄項
相似文獻
相關主題

摘要

We investigate, in one spatial dimension, the quantum mechanical tunnelling of a diatomic, homogeneous molecule with a single bound state incident upon an external barrier. Both time-independent and time-dependent tunnelling are investigated, using analytical and numerical methods. In the time-independent case, we first derive a formal solution for the molecule's wave function. Then, using the method of variable reflection and transmission amplitudes, we find that the probabilities of reflection and transmission in the bound state decrease with decreased binding strength, while the probabilities of refection and transmission in an unbound state increase with decreased binding energy. In the time-dependent case, we consider a molecule with discrete unbound states. The molecular wave function is modelled as a Gaussian wave packet, and its propagation is calculated numerically using Crank-Nicholson integration. It is found that, in addition to reflecting and transmitting, the molecule may also straddle the potential barrier in an unbound state.

機譯：我們在一個空間維度上研究了雙原子均質分子的單分子結合態入射到外部勢壘的量子力學隧穿。使用分析和數值方法研究了與時間無關的隧道和與時間有關的隧道。在與時間無關的情況下，我們首先導出分子波動函數的形式化解。然后，使用可變的反射和透射幅度的方法，我們發現在結合狀態下反射和透射的概率隨結合強度的降低而降低，而在未結合狀態下反射和透射的概率隨結合能的降低而升高。在時間相關的情況下，我們考慮一個具有離散未結合態的分子。將分子波函數建模為高斯波包，并使用Crank-Nicholson積分數值計算其傳播。已經發現，除了反射和透射之外，該分子還可以跨越未結合狀態的勢壘。

著錄項

作者
Kavka, Jeremy J.;
展開▼
作者單位

University of Northern British Columbia (Canada).;

展開▼
授予單位 University of Northern British Columbia (Canada).;
學科 Physics Quantum.;Physics Molecular.
學位 M.Sc.
年度 2010
頁碼 133 p.
總頁數 133
原文格式 PDF
正文語種 eng
中圖分類
關鍵詞
入庫時間 2022-08-17 11:36:59

相似文獻

外文文獻
中文文獻
專利

1. Quantum tunneling and reflection of a molecule with a single bound state [J] . Kavka JJ, Kerbrat D, Shegelski MRA Physical Review, A. Atomic, molecular, and optical physics . 2010,第2aPta1期

機譯：具有單鍵態的分子的量子隧穿和反射
2. Quantum simulation of ferromagnetic and anti-ferromagnetic tunneling anisotropic magnetoresistance in a single-molecule-magnet dimer tunnel-junction [J] . Chao Zhang, Hui Yao, Yi-Hang Nie, AIP Advances . 2019,第6期

機譯：單分子 - 磁體二聚體隧道交界處的鐵磁性抗鐵磁隧道各向異性磁阻的量子仿真
3. Resonant Tunneling in Truly Axial Symmetry Mn_(12) Single-Molecule Magnets: Sharp Crossover between Thermally Assisted and Pure Quantum Tunneling [J] . W. Wernsdorfer, M. Murugesu, G. Christou Physical review letters . 2006,第5期

機譯：軸對稱Mn_（12）單分子磁體中的共振隧穿：熱輔助和純量子隧穿之間的尖銳交叉
4. Spin states in a single InAs quantum dot molecule probed by single-electron tunneling spectroscopy [C] . T. Ota, M. Stopa, M. Rontani, International Conference on the Physics of Semiconductors . 2005

機譯：通過單電子隧道光譜探測的單個InAs量子點分子中的旋轉狀態
5. Distributions of tunnel splittings in quantum tunneling of magnetization in the single molecule magnet, Mn12-acetate. [D] . Mertes, Kevin Mathias. 2002

機譯：單分子磁體Mn12-乙酸鹽中磁化量子隧穿中的隧道裂隙分布。
6. Nucleotide and structural label identification in single RNA molecules with quantum tunneling spectroscopy [O] . Gary R. Abel Jr, Lee E. Korshoj, Peter B. Otoupal, 2019

機譯：量子隧道光譜法鑒定單個RNA分子中的核苷酸和結構標記
7. Quantum tunnelling of a molecule with a single bound state. [O] . 2010

機譯：具有單鍵狀態的分子的量子隧穿。
8. Macroscopic quantum tunneling in Josephson tunnel junctions and Coulomb blockade in single small tunnel junctions. [R] . A. N. Cleland 1991

機譯：約瑟夫森隧道結中的宏觀量子隧穿和單個小隧道結中的庫侖阻塞。

Quantum tunnelling of a molecule with a single bound state .

摘要

著錄項

相似文獻

相關主題