GROUND STATE ENERGY OF A TWO-LEVEL SYSTEM INTERACTING WITH PHONONS

被引：0

作者：

Mukhopadhyay, Soma ^{[1
]}

Demircioglu, Bengu ^{[2
]}

Gandikota, Ramesh ^{[3
]}

Chatterjee, Ashok ^{[3
]}

机构：

[1] DVR Coll Engn & Technol, Dept Phys, Hyderabad 502285, Andhra Pradesh, India

[2] Saraykoy Nukl Arastirma & Egitim Merkezi Saray Ma, TR-06983 Saray Kazan Ankara, Turkey

[3] Univ Hyderabad, Sch Phys, Hyderabad 500134, Andhra Pradesh, India

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2013年 / 27卷 / 21期

关键词：

Two-level system; phonons; electron-phonon interaction; EQUILIBRIUM CORRELATION-FUNCTIONS; SPIN-BOSON MODEL; DYNAMICS; PARTICLE; APPROXIMATION; DISSIPATION; TRANSITION;

D O I：

10.1142/S0217979213500987

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A two-level system interacting with a heat bath is considered. For simplicity the electron is assumed to interact with only two modes of the heat bath. The ground state energy of this system is obtained using a variational approach involving a series of canonical transformations. The present results are found to be more accurate than the previously reported variational results.

引用

页数：10

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