Article
Mathematics, Interdisciplinary Applications
Zheng-Hong Deng, Zi-Ren Wang, Huan-Bo Wang, Yijie Huang
Summary: Informers play a significant role in cooperation behavior by labeling defectors and promoting cooperation. With an increasing proportion of informers, cooperation can be further enhanced, and there is an obvious threshold in the change of informers' proportion.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Mathematics, Applied
Zi-Ren Wang, Zheng-Hong Deng, Huan-Bo Wang, HuXiong Li Li, X. Fei-Wang
Summary: This study introduces an uneven resource distribution network model to investigate cooperative behavior among players. The findings indicate that defectors may initially occupy resource-rich areas but struggle to survive in hostile environments, while cooperators continue to thrive. Furthermore, cooperative behavior is promoted when resources are substantially depleted.
APPLIED MATHEMATICS AND COMPUTATION
(2022)
Article
Mathematics, Interdisciplinary Applications
A. M. Locodi, C. O'Riordan
Summary: In this study, we systematically explore the outcomes of simulations of populations playing the Prisoner's Dilemma. By placing agents on a toroidal lattice and conducting two-player one shot Prisoner's Dilemma with their neighbors, we investigate the effects of transitioning from a square lattice to a rectangular lattice with reduced column height or row width. Our results reveal different outcomes and we categorize and explain the observed phenomena. Additionally, we calculate the potential payoffs for both cooperators and defectors and identify a set of simulations to undertake based on the complete set of possible non-equal payoff relationships.
CHAOS SOLITONS & FRACTALS
(2023)
Article
Multidisciplinary Sciences
Gopal Sharma, Hao Guo, Chen Shen, Jun Tanimoto
Summary: Cooperative bots facilitate the emergence of cooperation among ordinary players in both well-mixed populations and a regular lattice. Introducing loner bots has different effects depending on the imitation scenarios, with facilitation in regular lattices under strong imitation scenarios but inhibition on the spread of cooperation when too many loner bots are present. The findings highlight the significance of bot design in promoting cooperation in real-world scenarios.
JOURNAL OF THE ROYAL SOCIETY INTERFACE
(2023)
Article
Physics, Multidisciplinary
Zi-Ren Wang, Zheng-Hong Deng, Huan-Bo Wang, Yun Qu
Summary: The study shows that moderately overestimating and underestimating reality can enhance cooperation, and having more players with moderate irrational sentiment can promote cooperation. Overestimation and underestimation have different effects on cooperation.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2021)
Article
Mathematics, Interdisciplinary Applications
Zhenyu Shi, Wei Wei, Xiangnan Feng, Ruizhi Zhang, Zhiming Zheng
Summary: Research has shown that combining the Win-Stay-Lose-Learn rule with voluntary participation can significantly promote cooperation under moderate temptation values, but the survival of cooperators is still challenging under high aspiration levels and temptation values. The combination of dynamic aspiration and voluntary participation can greatly promote cooperation and loners can survive and expand stably under high initial aspiration levels. It is important to be aware of adverse structures that may impact the evolutionary process.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Physics, Multidisciplinary
Jae Han Choi, Sungmin Lee, Jae Woo Lee
Summary: This study investigated the application of the prisoner's dilemma game in signed networks. The results showed that when the density of negative links is low, cooperation behavior is weakened; however, when the density of negative links is high, cooperation behavior is enhanced.
Article
Mathematics, Applied
Tao You, Hailun Zhang, Ying Zhang, Qing Li, Peng Zhang, Mei Yang
Summary: The emergence and maintenance of cooperative behavior in groups is an important topic in game theory. Traditional networks with single mechanisms face challenges in analyzing the diversity of groups in society. Recent studies have shown the potential of multi-layer coupled network based evolutionary game theory in exploring the transmission of cooperative behavior between individuals. This study combines the game strategy of reinforcement learning with the traditional prisoner's dilemma strategy based on multiple coupled networks, enhancing the intelligent decision-making capability of group behaviors. Simulation of game evolution validates that cooperative behavior can be maintained by adjusting the group's ability with effective guidance.
APPLIED MATHEMATICS AND COMPUTATION
(2022)
Article
Physics, Multidisciplinary
Mingjian Fu, Jingbin Wang, Linlin Cheng, Lijuan Chen
Summary: The study introduces a reward mechanism based on historical loyalty to enhance cooperation among selfish individuals, with results showing that proper loyalty thresholds and reward factors can significantly increase cooperation levels. Time evolution of cooperator density and spatial distribution of cooperators and defectors were also examined.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2021)
Article
Mathematics, Applied
Liyan Gao, Qiuhui Pan, Mingfeng He
Summary: This study proposes an environmental-based defensive game model, which shows that defensive awareness helps cooperators survive in competition, achieve stable coexistence of cooperation and defection, and ultimately reach an evolutionary stable state of full cooperation.
APPLIED MATHEMATICS AND COMPUTATION
(2021)
Article
Mathematics, Interdisciplinary Applications
Siyuan Liu, Chunyan Zhang, Kun Li, Jianlei Zhang
Summary: This study investigates the internal motivation for cooperation dilemma and finds that the randomness and heterogeneity of population structure strengthen the fitness of defectors. It also reveals that the cooperative willingness of individuals in betrayal situations has a decisive impact on the cooperation level of groups. Additionally, the study proposes two innovative mechanisms, enforcement and punishment, to promote collective cooperation.
CHAOS SOLITONS & FRACTALS
(2022)
Article
Mathematics
Haodong Niu, Keyu Li, Juan Wang
Summary: In this paper, an improved spatial prisoner's dilemma game model is proposed, allowing the focal player to access the strategy of other agents beyond their nearest neighbors with a specified probability. The results of numerical simulations show that a moderate value of n can promote the evolution of cooperation and an increase in q will intensify the dilemma of cooperators. There is an optimal product of n x c to cause the emergence of cooperation under the specific simulation setup. Overall, these results contribute to understanding the evolution of cooperation within a structured population.
Article
Mathematics, Interdisciplinary Applications
M. Zhang, Si-Yi Wang, Xin-Tao Hu, K. Alfaro-Bittner
Summary: This study presents preliminary experimental evidence on the role of local and global information in networks of repeated Prisoner's dilemma game. The results indicate that agents are more willing to cooperate when they have access to global information or have the option to freely choose between global and local information, while tending to adopt a conservative strategy of defection with only local information.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Mechanics
Ran Su, Jia-Li Qian, Qing-Yi Hao, Chao-Yun Wu, Ning Guo, Xiang Ling
Summary: The emotions of individuals play a crucial role in influencing cooperation in human society. An individual's acceptability of their own strategy, influenced by the strategies of their neighbors, can lead them to adjust their strategy in a spatial game. This study investigates a spatial prisoner's dilemma game with acceptability involved, where the average acceptability in the community is considered as a factor in an individual's fitness. The numerical experiments demonstrate that individuals considering average acceptability can significantly promote cooperation under certain conditions. Moreover, while individuals' blind conformity behavior can encourage cooperation when the temptation value is low, it becomes detrimental to cooperation for high temptation values. These findings provide insights into understanding the mechanism of emotions in promoting cooperation.
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
(2023)
Article
Mathematics, Interdisciplinary Applications
Liyan Gao, Qiuhui Pan, Mingfeng He
Summary: This paper investigates the influence of peer pressure on the evolution of cooperation in the prisoner's dilemma game. The results show that peer pressure can promote cooperation. The impact of pressure sensitivity on the system is non-trivial, and the evolution of the system can be categorized into three types based on the intensity of pressure. Furthermore, when cooperators and defectors have different pressure sensitivities, the promotion effect on cooperation is better compared to when they have the same pressure sensitivities.
CHAOS SOLITONS & FRACTALS
(2023)
Article
Energy & Fuels
Andreas Pusch, Phoebe Pearce, Nicholas J. Ekins-Daukes
IEEE JOURNAL OF PHOTOVOLTAICS
(2019)
Article
Physics, Applied
Andreas Pusch, Nicholas J. Ekins-Daukes
PHYSICAL REVIEW APPLIED
(2019)
Article
Physics, Applied
Andreas Pusch, Jeffrey M. Gordon, Alex Mellor, Jacob J. Krich, Nicholas J. Ekins-Daukes
PHYSICAL REVIEW APPLIED
(2019)
Article
Energy & Fuels
Andreas Pusch, Milos Dubajic, Michael P. Nielsen, Gavin J. Conibeer, Stephen P. Bremner, Nicholas J. Ekins-Daukes
Summary: The study discusses the experimental features of hot carrier solar cells in reverse electroluminescent mode and their differences from traditional solar cells. Through research, it was found that the hot carrier properties lead to deviations in the dark I-V curve of the cells from the typical Shockley diode equation, directly related to the increase in carrier temperature.
PROGRESS IN PHOTOVOLTAICS
(2021)
Article
Chemistry, Physical
Myles A. Steiner, Ryan M. France, Jeronimo Buencuerpo, John F. Geisz, Michael P. Nielsen, Andreas Pusch, Waldo J. Olavarria, Michelle Young, Nicholas J. Ekins-Daukes
Summary: High-efficiency solar cells are crucial for various applications, with lower energy bandgaps achieved through the use of multiple quantum wells. Incorporating strain-balanced GaAsP/GaInAs QWs into solar cells has led to increased efficiency.
ADVANCED ENERGY MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Yongkang Gong, Kang Li, Nigel Copner, Heng Liu, Meng Zhao, Bo Zhang, Andreas Pusch, Diana L. Huffaker, Sang Soon Oh
Summary: The proposed electrically controlled thermal emitter based on nanophotonic engineering with layered metamaterials demonstrates significantly enhanced emissivity in the broad infrared wavelengths and optical features of a strong photonic bandgap. The electrically driven metamaterial devices are optically and thermally stable at temperatures up to 800K with an electro-optical conversion efficiency of approximately 30%, providing a novel alternative for cost-effective, compact, low glare, and energy-efficient infrared heating.
Article
Physics, Applied
Andreas Pusch, Stephen P. Bremner, Murad J. Y. Tayebjee, Nicholas J. Ekins Daukes
Summary: Efficiency limits of multiple exciton generation (MEG) solar cells need to consider Auger recombination, challenging the assumption of effective separation of timescales in traditional quasi-equilibrium models. A non-equilibrium model can offer more accurate assessment of MEG solar cell performance by taking into account Auger recombination impact.
APPLIED PHYSICS LETTERS
(2021)
Editorial Material
Optics
Andreas Pusch, Michael P. Nielsen, Muhammad H. Sazzad, Peter J. Reece, Nicholas J. Ekins-Daukes
Summary: The current-voltage characteristics presented by Zhang et al. in their recent work overestimate the achievable power using the proposed material by several orders of magnitude.
Article
Energy & Fuels
Abhinav S. Sharma, Andreas Pusch, Michael P. Nielsen, Udo Romer, Murad J. Y. Tayebjee, Fiacre E. Rougieux, Nicholas J. Ekins-Daukes
Summary: Efficiently utilizing near-infrared solar radiation is a challenge in advanced solar energy conversion concepts. The particulate nature of solar photon flux limits the efficiency of schemes that rely on interaction between optically excited states. This article presents a quantitative assessment of reported device architectures and material properties and discusses the limitations posed by the sparse solar photon flux. The article also highlights the shortcomings of two photon absorption and non-linear optical methods and explores strategies such as sensitisation and phononic engineering to bridge the efficiency gap.
Article
Nanoscience & Nanotechnology
Michael P. Nielsen, Andreas Pusch, Muhammad H. Sazzad, Phoebe M. Pearce, Peter J. Reece, Nicholas J. Ekins-Daukes
Summary: Thermoradiative diodes generate power through the emission of light instead of absorption, and have potential applications in night-sky power generation and waste heat recovery. This study measures the electro-optical characteristics of HgCdTe photodiodes and highlights the need for high radiative efficiencies in mid-infrared semiconductors for thermoradiative power generation.
Article
Energy & Fuels
Stefan W. Tabernig, Anastasia H. Soeriyadi, Udo Romer, Andreas Pusch, Dimitry Lamers, Matthias Klaus Juhl, David N. R. Payne, Michael P. Nielsen, Albert Polman, Nicholas J. Ekins-Daukes
Summary: Shading losses have always been a challenge in photovoltaic devices, but this study presents a simple and scalable fabrication method to minimize shading losses while achieving large front metal coverage. The use of soft imprint lithography allows for the creation of trenches that enable optical cloaking, resulting in improved efficiency in photovoltaic cells.
IEEE JOURNAL OF PHOTOVOLTAICS
(2022)
Proceedings Paper
Energy & Fuels
Myles A. Steiner, Ryan M. France, Jeronimo Buencuerpo, John F. Geisz, Michael P. Nielsen, Andreas Pusch, Waldo J. Olavarria, Michelle Young, Nicholas J. Ekins-Daukes
Summary: The study demonstrates single and dual junction solar cells with multiple quantum wells to extend photon absorption range and achieve high efficiency. The research discusses device architecture, performance principles, and pathways for further improvement.
2021 IEEE 48TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC)
(2021)
Proceedings Paper
Energy & Fuels
Nicholas J. Ekins-Daukes, Anastasia Soeriyadi, Wenqi Zhao, Stephen Bremner, Andreas Pusch
14TH INTERNATIONAL CONFERENCE ON CONCENTRATOR PHOTOVOLTAIC SYSTEMS (CPV-14)
(2018)
Proceedings Paper
Green & Sustainable Science & Technology
Andreas Pusch, Nicholas P. Hylton, Nicholas J. Ekins-Daukes
2018 IEEE 7TH WORLD CONFERENCE ON PHOTOVOLTAIC ENERGY CONVERSION (WCPEC) (A JOINT CONFERENCE OF 45TH IEEE PVSC, 28TH PVSEC & 34TH EU PVSEC)
(2018)
Article
Materials Science, Multidisciplinary
S. Guazzotti, A. Pusch, D. E. Reiter, O. Hess