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Evanescent coupling between a silica optical microbottle resonator and a GaAs electromechanical resonator is demonstrated. This coupling provides high optical sensitivity and efficient piezoelectric controllability of mechanical motion.…

Mesoscale and Nanoscale Physics · Physics 2018-05-17 Motoki Asano , Ryuichi Ohta , Takashi Yamamoto , Hajime Okamoto , Hiroshi Yamaguchi

This study investigates a strongly-coupled system of partial differential equations (PDE) governing heat transfer in a copper rod, longitudinal vibrations, and total charge accumulation at electrodes within a magnetizable piezoelectric…

Optimization and Control · Mathematics 2024-03-14 Ahmet Ozkan Ozer , Ibrahim Khalilullah , Uthman Rasaq

The electron-phonon coupling (EPC) is a ubiquitous interaction in condensed systems and plays a vital role in shaping the electronic properties of materials. Yet, achieving coherent manipulation of electron-phonon coupling has posed a…

Materials Science · Physics 2024-05-13 Jicai Zhang , Tien-Dat Tran , Ziwen Wang , Wenhao Yu , Chong Zhang , Marcus Lo , Wenqi Xu , Tran Trung Luu

We experimentally demonstrate that the spin-orbit interaction can be utilized for direct electric-field tuning of the propagation of spin waves in a single-crystal yttrium iron garnet magnonic waveguide. Magnetoelectric coupling not due to…

Mesoscale and Nanoscale Physics · Physics 2014-10-08 Xufeng Zhang , Tianyu Liu , Michael E. Flatté , Hong X. Tang

Electrowetting is a commonly used tool to manipulate sessile drops on hydrophobic surfaces. By applying an external voltage over a liquid and a dielectric-coated surface, one achieves a reduction of the macroscopic contact angles for…

Soft Condensed Matter · Physics 2019-07-05 Ranabir Dey , Mathijs van Gorcum , Frieder Mugele , Jacco H. Snoeijer

We perform a dimension reduction analysis for a coupled rate-dependent/rate-independent adhesive-contact model in the setting of visco-elastodynamic plates. We work with a weak solvability notion inspired by the theory of (purely)…

Analysis of PDEs · Mathematics 2025-11-14 Giovanna Bonfanti , Elisa Davoli , Riccarda Rossi

Schemes to achieve strong coupling between mechanical modes of aluminum nitride microstructures and microwave cavity modes due to the piezoelectric effect are proposed. We show that the strong coupling regime is feasible for an on-chip…

Optics · Physics 2016-07-13 Chang-Ling Zou , Xu Han , Liang Jiang , Hong X. Tang

In this paper we introduce the optimal control of a kinetic model describing agents who migrate on a graph and interact within its nodes exchanging a physical quantity. As a prototype model, we consider the spread of an infectious disease…

Optimization and Control · Mathematics 2026-01-15 Jonathan Franceschi , Nadia Loy

This paper presents a methodology of controlling the resonance energy exchange in mechanical system consisting of two weakly coupled magnetic pendulums interacting with the magnetic field generated by coils placed underneath. It is shown…

Systems and Control · Electrical Eng. & Systems 2023-04-20 Valery N. Pilipchuk , Krystian Polczyński , Maksymilian Bednarek , Jan Awrejcewicz

This paper introduces a theory for assessing and optimizing the multiple-input-multiple-output performance of multi-port cluster antennas in terms of efficiency, channel correlation, and power distribution. A method based on a convex…

Information Theory · Computer Science 2023-12-25 Vojtech Neuman , Miloslav Capek , Lukas Jelinek , Anu Lehtovuori , Ville Viikari

Recent studies of the dynamically assisted Schwinger effect have shown that particle production is significantly enhanced by a proper choice of the electric field. We demonstrate that optimal control theory provides a systematic means of…

High Energy Physics - Phenomenology · Physics 2013-08-29 Christian Kohlfürst , Mario Mitter , Gregory von Winckel , Florian Hebenstreit , Reinhard Alkofer

Oscillatory biochemical signals and mechanical forces must coordinate robustly during development, yet the principles governing their mutual coupling remain poorly understood. In syncytial embryos and cell-free extracts, mitotic waves…

Biological Physics · Physics 2026-01-12 Lara Koehler , Elissavet Sandaltzopoulou , Frank Jülicher , Jan Brugués

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

The coupling between electrons and phonons is at the heart of many fundamental phenomena in physics. In nature, this coupling is generally predetermined for both, molecules and solids. Tremendous advances have been made in controlling…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Avishai Benyamini , Assaf Hamo , Silvia Viola Kusminskiy , Felix von Oppen , Shahal Ilani

We consider an optimal control problem where the state equations are a coupled hyperbolic-elliptic system. This system arises in elastodynamics with piezoelectric effects -- the elastic stress tensor is a function of elastic displacement…

Numerical Analysis · Mathematics 2019-11-05 Harbir Antil , Thomas S. Brown , Francisco-Javier Sayas

We propose an experimental technique based on all-electric measurements to retrieve the frequency response of a one-dimensional piezoelectric phononic crystal plate, structured periodically with millimeter-scaled metallic strips on its two…

Applied Physics · Physics 2019-10-09 F. H. Chikh-Bled , N. Kherraz , R. Sainidou , P. Rembert , B. Morvan

We investigate creation of optimal entanglement in symmetric networks. The proposed network is one in which the connections are organized by a group table in other words a group association scheme. We show that optimal entanglement can be…

Quantum Physics · Physics 2009-09-10 M. Ghojavand , M. A. Jafarizadeh , S. Rouhani

We have simulated the non-linear dynamics of networks of spin-transfer oscillators. The oscillators are magnetically uncoupled but electrically connected in series. We use a modified Landau-Lifschitz- Gilbert equation to describe the motion…

Materials Science · Physics 2009-11-11 J. Grollier , V. Cros , A. Fert

The interaction between freely propagating electrons and light waves is typically described using an approximation in which we assume that the electron velocity remains approximately the same during the interaction. In this article we…

Quantum Physics · Physics 2025-03-06 Marek Kuchař , Kamila Moriová , Martin Kozák

Minimizing decoherence due to coupling of a quantum system to its fluctuating environment is at the forefront of quantum information science and photonics research. Nature sets the ultimate limit, however, given by the strength of the…

Mesoscale and Nanoscale Physics · Physics 2016-01-27 Galan Moody , Corey McDonald , Ari Feldman , Todd Harvey , Richard P. Mirin , Kevin L. Silverman