Results 111 to 120 of about 856,893 (374)

Coherent States of Harmonic Oscillator and Generalized Uncertainty Principle

, 2005
In this paper dynamics and quantum mechanical coherent states of a simple harmonic oscillator are considered in the framework of Generalized Uncertainty Principle(GUP).
Azizi, Tahereh, Nozari, Kourosh
core   +2 more sources

Engineering Thermal Emission with Enhanced Emissivity and Quality Factor Using Bound States in the Continuum and Electromagnetically Induced Absorption

Advanced Optical Materials, EarlyView.
A metal‐based thermal metasurface supporting bound states in the continuum is demonstrated and experimentally shown to achieve a record‐high quality factor of 202 and high emissivity of 0.82. The design offers thermally stable, narrowband mid‐infrared emission, making it ideal for high‐precision gas sensing applications.
Guodong Zhu, Ikjun Hong, Kewei Li, Theodore Anyika, Maxwell T. Ugwu, J. Ryan Nolen, Mingze He, Joshua D. Caldwell, Justus C. Ndukaife   +8 more
wiley   +1 more source

d-Dimensional generalization of the point canonical transformation for a quantum particle with position-dependent mass

, 2006
The d-dimensional generalization of the point canonical transformation for a quantum particle endowed with a position-dependent mass in Schrodinger equation is described. Illustrative examples including; the harmonic oscillator, Coulomb, spiked harmonic,
Bagchi B, Bastard G, Cai C Y, Ciftci H, De R, de Souza Dutra A, Flügge S, Hall R L, Hall R L, Hall R L, Herschbach D R, Junker G, Liouville J, Mustafa O, Mustafa O, Mustafa O, Mustafa O Mazharimousavi S H, Mustafa O Mazharimousavi S H, Omar Mustafa, Quesne C, S Habib Mazharimousavi, Sinha A Roy P, Tanaka T, Ushveridze A G, Vakarchuk I O, Znojil M, Znojil M   +26 more
core   +1 more source

Tailoring Optical and Vibrational Properties by Bond Confinement: The Case of Metavalent Chalcogenide and Pnictogen Thin Films

Advanced Optical Materials, EarlyView.
This perspective explores how intrinsic confinement effects in metavalent chalcogenide and pnictogen thin films alter optical and vibrational properties. By comparing thickness‐dependent effects across prototypical systems, this work highlights the role of unconventional bonding in shaping coherent phonon dynamics and dielectric functions, offering new
Felix Hoff, Matthias Wuttig
wiley   +1 more source

Transient energy excitation in shortcuts to adiabaticity for the time-dependent harmonic oscillator [PDF]

, 2010
We study for the time-dependent harmonic oscillator the transient energy excitation in speed-up processes ('shortcuts to adiabaticity') designed to reproduce the initial populations at some predetermined final frequency and time.
Xi Chen, J. G. Muga
semanticscholar   +1 more source

Ferroelectric Properties of Bilayer MoS2/WS2 Heterostructure Modulated by Twist Angle

Advanced Science, EarlyView.
The study reports the precise control of interlayer twist angles in the bilayer MoS2/WS2 heterostructure. The ferroelectric properties of MoS2/WS2 heterostructure can be significantly modulated by designing twist angles, resulting from the distortion of polar symmetric regions induced by Moiré patterns.
Liyao Wang, Zhuopeng Xia, Xiaoyao Sun, Shiyao Xu, Guodong Sun, Yingying Zheng, Zhen Zhan, Enlong Li, Songhua Cai, Yuan Zhang, Jinzhu Zhao, Wenwu Li, Shuoguo Yuan   +12 more
wiley   +1 more source

Superintegrable Oscillator and Kepler Systems on Spaces of Nonconstant Curvature via the Stäckel Transform

Symmetry, Integrability and Geometry: Methods and Applications, 2011
The Stäckel transform is applied to the geodesic motion on Euclidean space, through the harmonic oscillator and Kepler-Coloumb potentials, in order to obtain maximally superintegrable classical systems on N-dimensional Riemannian spaces of nonconstant ...
Ángel Ballesteros, Alberto Enciso, Francisco J. Herranz, Orlando Ragnisco, Danilo Riglioni   +4 more
doaj   +1 more source

Optically Driven Formation of Tailored Phonon Cavities

Advanced Science, EarlyView.
It is demonstrated that a structured optical field creates nanoscale “phonon cavities” in van der Waals materials, where atomic vibrations are confined and controlled in space and time. This approach enables programmable control of cavity geometry, symmetry, and frequency, and provides a platform for ultrafast studies of nonequilibrium interactions and
Jianyu Wu, Gaolong Cao, Yuzhu Fan, Saroj P. Dash, Dongkun Yu, Jonas Weissenrieder   +5 more
wiley   +1 more source

Stochastic Electrodynamics: Lessons from Regularizing the Harmonic Oscillator

Atoms, 2019
In this paper, the harmonic oscillator problem in Stochastic Electrodynamics is revisited. Using the exact shape of the Lorentz damping term prevents run-away effects.
Theodorus Maria Nieuwenhuizen
doaj   +1 more source

Ultrasensitive Diamond Cantilever‐Based Optical Microphone

Advanced Science, EarlyView.
The first demonstration that high quality diamond cantilevers function as high‐sensitivity acoustic transducers is reported, combining CVD diamond cantilevers and an extrinsic Fabry‐Perot optical configuration. High transduction efficiency yields record sensitivity (51.5 VPa−1) and MDP (0.018 µPa/Hz$\rm {\sqrt {Hz}}$), enabling durable, low‐noise ...
Shen Tian, Chaonan Lin, Yingying Qiao, Mingyang Feng, Yang Gao, Kaijun Mu, Mingqi Jiao, Lei Li, Chongxin Shan   +8 more
wiley   +1 more source