Negative differential thermal resistance in one-dimensional hard-point gas models

Luo, Rongxiang

doi:10.1103/physreve.99.032138

Cited by 9 publications

(3 citation statements)

References 37 publications

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“…Li and coworkers put forward the first theoretical proposal for a thermal transistor and clarified that NDTC is the crucial element for operation of the thermal transistor [7]. In the following years, thermal rectification and NDTC have been extensively studied in different systems both theoretically [10][11][12][13][14][15][16][17][18][19][20][21][22] and experimentally [23][24][25]. At the same time, various thermal transistor models have also been proposed, such as near-field thermal transistors [26], far-field thermal transistors [27][28][29], electrochemical thermal transistor [30], and quantum thermal transistors [31,32].…”

Section: Introductionmentioning

confidence: 99%

Thermal rectification and negative differential thermal conductance based on a parallel-coupled double quantum-dot

Zhang

Su²

2021

Physica A: Statistical Mechanics and its Applications

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Section: Introductionmentioning

confidence: 99%

Thermal rectification and negative differential thermal conductance based on a parallel-coupled double quantum-dot

Zhang

Su²

2021

Physica A: Statistical Mechanics and its Applications

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“…近来的研究表明负微分热阻仍有许多未被人们充分认识以及尚未被发现的新现象和新机制. 除在晶格模型和宏观经典系统中取得的最新进展 [27,28] , 更令人吃惊的是, 2019年的研究发现, 代表流体类的一维气体模型在可积和不可积的情况下热库对气体粒子运动的约束是诱导负微分热阻的一个新机制 [29] . 值得注意的是, 可积的晶格模型中是不存法" [30] , 目前该方法还被成功应用于带电多粒子系统的非平衡热输运研究 [31,32] 热库的速度分布函数为 [33,34] 拟 [30] .…”

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Negative differential thermal resistance in a two-dimensional gas model

Huang¹,

Luo²

2023

Acta Phys. Sin.

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The negative differential thermal resistance (NDTR) effect refers to a phenomenon that may take place in a heat transport system where the heat current counterintuitively decreases as the temperature difference between heat baths increases. Understanding and controlling the NDTR properties of out-of-equilibrium systems and using them to design new functional thermal devices are the major challenges of modern science and technology, which has important theoretical significance and application prospects. Up to now, the various lattice models representing solid materials have been taken to study the NDTR properties, but the fluid models have not received enough attention. It has recently been shown that in one-dimensional hard-point gas models representing fluids, there is a mechanism for NDTR induced by heat baths. The mechanism for NDTR in such a system depends on the simple fact that decreasing the temperature of the cold bath can weaken the motion of particles and decrease the collision rate between particles and the hot bath, thus impeding thermal exchange between the cold and hot baths. In this paper, we study how this mechanism works in more general two-dimensional gas models described by multi-particle collision dynamics. The gas models we consider are in a finite rectangular region of two-dimensional space with each end in contact with a heat bath. Based on the analytical results and numerical simulations, we show that the mechanism underlying NDTR induced by heat baths is also in effect for two-dimensional gas models and is applicable for describing systems with small sizes and weak interactions. Our result, together with that previously obtained in one-dimensional gas models, provides strong evidence that gas systems can exhibit NDTR by decreasing the temperature of the heat bath, which sheds new light on the exploring direction for developing various fluidic thermal control devices.

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“…If all particles do not interact, i.e., each particle keeps its velocity unchanged from one heat bath to the other as it crosses the system, then the system is integrable. Under this situation, J can be computed by a similar analysis as done in [39]. Taking it into Eq.…”

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confidence: 99%

Heat conduction in a three-dimensional momentum-conserving fluid

Luo,

Huang,

Lepri

2021

Preprint

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Negative differential thermal resistance in one-dimensional hard-point gas models

Cited by 9 publications

References 37 publications

Thermal rectification and negative differential thermal conductance based on a parallel-coupled double quantum-dot

Thermal rectification and negative differential thermal conductance based on a parallel-coupled double quantum-dot

Negative differential thermal resistance in a two-dimensional gas model

Heat conduction in a three-dimensional momentum-conserving fluid

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