# Heat and particle transport in a one-dimensional hard-point gas model with on-site potential

## Abstract

Heat and particle transport in a one-dimensional hard-point gas of elastically colliding particles are studied. In the nonequal mass case, due to the presence of on-site potential, the heat conduction of the model obeys the Fourier law and all the transport coefficients asymptotically approach constants in the thermodynamic limit. The thermoelectric figure of merit ZT increases slowly with the system length L and is proportional to the height of the potential barriers H in high H regime. These findings may serve as a guide for future theoretical and experimental studies.

- Authors:

- Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials and Micro-nano Devices, Renmin University of China, Beijing 100872 (China)

- Publication Date:

- OSTI Identifier:
- 22488553

- Resource Type:
- Journal Article

- Journal Name:
- AIP Advances

- Additional Journal Information:
- Journal Volume: 5; Journal Issue: 5; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 2158-3226

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 36 MATERIALS SCIENCE; 97 MATHEMATICAL METHODS AND COMPUTING; HEAT; PARTICLES; SIMULATION; THERMAL CONDUCTION

### Citation Formats

```
Wang, Lei, E-mail: phywanglei@ruc.edu.cn.
```*Heat and particle transport in a one-dimensional hard-point gas model with on-site potential*. United States: N. p., 2015.
Web. doi:10.1063/1.4913995.

```
Wang, Lei, E-mail: phywanglei@ruc.edu.cn.
```*Heat and particle transport in a one-dimensional hard-point gas model with on-site potential*. United States. doi:10.1063/1.4913995.

```
Wang, Lei, E-mail: phywanglei@ruc.edu.cn. Fri .
"Heat and particle transport in a one-dimensional hard-point gas model with on-site potential". United States. doi:10.1063/1.4913995.
```

```
@article{osti_22488553,
```

title = {Heat and particle transport in a one-dimensional hard-point gas model with on-site potential},

author = {Wang, Lei, E-mail: phywanglei@ruc.edu.cn},

abstractNote = {Heat and particle transport in a one-dimensional hard-point gas of elastically colliding particles are studied. In the nonequal mass case, due to the presence of on-site potential, the heat conduction of the model obeys the Fourier law and all the transport coefficients asymptotically approach constants in the thermodynamic limit. The thermoelectric figure of merit ZT increases slowly with the system length L and is proportional to the height of the potential barriers H in high H regime. These findings may serve as a guide for future theoretical and experimental studies.},

doi = {10.1063/1.4913995},

journal = {AIP Advances},

issn = {2158-3226},

number = 5,

volume = 5,

place = {United States},

year = {2015},

month = {5}

}

DOI: 10.1063/1.4913995

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