Quantum Mechanical Heat Transport in Disordered Harmonic Chains

Details Quantum Mechanical Heat Transport in Disordered Harmonic Chains Quantum Mechanical Heat Transport in Disordered Harmonic Chains

2007-02-15

arxiv.org/abs/quant-ph/0702157v3

Phys. Rev. E 76, 011111 (2007)

Physics

Quantum Physics

12 pages, 15 figures

Scientific paper

10.1103/PhysRevE.76.011111

We investigate the mechanism of heat conduction in ordered and disordered harmonic onedimensional chains within the quantum mechanical Langevin method. In the case of the disordered chains we find indications for normal heat conduction which means that there is a finite temperature gradient but we cannot clearly decide whether the heat resistance increases linearly with the chain length. Furthermore we observe characteristic quantum mechanical features like Bose-Einstein statistics of the occupation numbers of the normal modes, freezing of the heat conductivity and the influence of the entanglement within the chain on the current. For the ordered chain we recover some classical results like a vanishing temperature gradient and a heat flux independent of the length of the chain.

Affiliated with

Also associated with

No associations

Rating

Quantum Mechanical Heat Transport in Disordered Harmonic Chains does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quantum Mechanical Heat Transport in Disordered Harmonic Chains, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum Mechanical Heat Transport in Disordered Harmonic Chains will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-303305