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Research into the efficiency of photosynthetic light harvesting has focused on two factors: (1) entanglement of chromophores, and (2) environmental noise. While chromophores are conjugated $\pi$-bonding molecules with strongly correlated…

Biological Physics · Physics 2013-03-29 David A. Mazziotti

We propose a pyroelectric energy conversion device that converts heat directly to electricity. In contrast to conventional pyroelectric energy conversion designs, this energy harvesting system is detached from any external power sources,…

Applied Physics · Physics 2019-08-07 Chenbo Zhang , Yintao Song , Maike Wegner , Eckhard Quandt , Xian Chen

Recently the quantum nature in the energy transport in solar cell and light-harvesting complexes have attracted much attention, as being triggered by the experimental observations. We model the light-harvesting complex (i.e., PEB50 dimer)…

Chemical Physics · Physics 2015-03-05 Zhedong Zhang , Jin Wang

We study the interplay between two environmental influences on excited state energy transfer in photosynthetic light harvesting complexes, namely, vibrationally assisted energy transfer (VAET) and environment-assisted quantum transport…

Biological Physics · Physics 2022-03-28 Zeng-Zhao Li , Liwen Ko , Zhibo Yang , Mohan Sarovar , K. Birgitta Whaley

We study a rain-powered energy-harvesting device inspired by the natural impact of raindrops on leaves. In nature, a raindrop striking a leaf at high speed causes it to deform and vibrate. Inspired by this, our device uses an elastic beam…

Instrumentation and Detectors · Physics 2025-08-18 Jisoo Yuk , Alicia Leem , Kate Thomas , Sunghwan Jung

In recent years, wireless communication systems are expected to achieve more cost-efficient and sustainable operations by replacing conventional fixed power supplies such as batteries with energy harvesting (EH) devices, which could provide…

Information Theory · Computer Science 2016-07-19 Hang Li , Jie Xu , Rui Zhang , Shuguang Cui

This paper investigates a new method to model and control variable-frequency power converters in a switching-synchronized sampled-state space for cycle-by-cycle digital control. There are a number of significant benefits in comparison to…

Systems and Control · Electrical Eng. & Systems 2022-09-13 Xiaofan Cui , Al-Thaddeus Avestruz

This paper provides a first study of utilizing energy harvesting for sustainable machine learning in distributed networks. We consider a distributed learning setup in which a machine learning model is trained over a large number of devices…

Machine Learning · Computer Science 2021-02-11 Basak Guler , Aylin Yener

We recently proposed effective normal modes for excitonically coupled aggregates which exactly transform the energy transfer Hamiltonian into a sum of one-dimensional Hamiltonians along the effective normal modes. Identifying physically…

Chemical Physics · Physics 2022-05-25 Sanjoy Patra , Vivek Tiwari

We investigate the influence of parametric excitation on MEMS vibration energy harvesters for energy autonomous sensor systems. In Industry 4.0 (or Industrial IoT) applications, interconnected sensors provide a means of data acquisition for…

We describe and demonstrate a new energy harvesting technology based on a microfluidic realization of a Wimshurst influence machine. The prototype device converts the mechanical energy of a pressure-driven flow into electrical energy, using…

This paper investigates how the power generated by electromagnetic based vibrational power generators scales with the dimension of the generator. The effects of scaling on the magnetic fields, the coil parameters and the electromagnetic…

Other Computer Science · Computer Science 2007-11-29 T. O'Donnell , C. Saha , S. -P. Beeby , M. -J. Tudor

The performances of energy harvesting generators based on dielectric elastomers are investigated. The configuration is of a thin dielectric film coated by stretchable electrodes at both sides. The film is first stretched, then charged and…

Soft Condensed Matter · Physics 2014-03-14 R. Springhetti , E. Bortot , G. deBotton , M. Gei

The accurate modelling and simulation of electric devices involving ferromagnetic materials requires the appropriate consideration of magnetic hysteresis. We discuss the systematic incorporation of the energy-based vector hysteresis model…

Numerical Analysis · Mathematics 2025-07-22 Herbert Egger , Felix Engertsberger

The paper presents a new study method of mechanic vibrations with the help of the data acquisition systems. The study of vibrations with the help of data acquisition systems allows the solving of some engineering problems connected to the…

Computational Engineering, Finance, and Science · Computer Science 2014-03-19 Lenuta Suciu , Florentina Cziple , Cornelia Anghel

We study energy harvesting (EH) transmitter and receiver, where the receiver decodes data using the harvested energy from the nature and from an independent EH node, named helper. Helper cooperates with the receiver by transferring its…

Information Theory · Computer Science 2016-04-19 Mohsen Abedi , Mohammad Javad Emadi , Behzad Shahrasbi

Starting from the many-body Schr\"odinger equation, we derive a new type of Lindblad Master equations describing a cyclic exciton/electron dynamics in the light harvesting complex and the reaction center. These equations resemble the Master…

Chemical Physics · Physics 2020-06-19 Shmuel Gurvitz , Gennady P. Berman , Richard T. Sayre

A Hamiltonian based approach using spatially localized projection operators is introduced to give precise meaning to the chemically intuitive idea of the electronic energy on a quantum subsystem. This definition facilitates the study of…

Quantum Physics · Physics 2015-06-11 Yaser R. Khan , Paul Brumer

We demonstrate an ultrafast voltage sampling technique using a stream of electron wavepackets. Electrons are emitted from a single-electron pump and travel through electron waveguides towards a detector potential barrier. Our electrons…

Bulk electrochemical phase transitions (EPTs) are the cornerstone of most modern electro-chemical technologies, underlying many energy storage and electrocatalytic systems. Nonetheless, the fundamental mechanisms governing EPTs in…

Chemical Physics · Physics 2025-07-25 Keyvan Malaie