Results 61 to 70 of about 151,578 (271)

Solution of the quantum harmonic oscillator plus a delta-function potential at the origin: The oddness of its even-parity solutions

, 2011
We derive the energy levels associated with the even-parity wave functions of the harmonic oscillator with an additional delta-function potential at the origin.
Peres, N. M. R., Viana-Gomes, J.
core   +1 more source

A Mechanistic Blueprint for Fast, High‐Yield Green Scintillators Using Conjugated Polymer–Nanocrystal Composites

Advanced Functional Materials, EarlyView.
Conjugated polymer–nanocrystal composites are investigated to develop fast, high‐yield green scintillators. The polymer F8BT enables efficient, ultrafast emission, while blends with non‐emitting HfO2 nanocrystals and luminescent CdZnS/ZnS quantum dots reveal distinct sensitization mechanisms.
Chenger Wang, Emanuele Mazzola, Andrea Fratelli, Matteo L. Zaffalon, Francesco Bruni, Francesco Carulli, Xiaohe Zhou, Saptarshi Chakraborty, Leonardo Poletti, Luca Cappelletti, Francesco Meinardi, Francesca Rossi, Luca Gironi, Sergio Brovelli   +13 more
wiley   +1 more source

The su(1,1) dynamical algebra from the Schr\"odinger ladder operators for N-dimensional systems: hydrogen atom, Mie-type potential, harmonic oscillator and pseudo-harmonic oscillator

, 2010
We apply the Schr\"odinger factorization to construct the ladder operators for hydrogen atom, Mie-type potential, harmonic oscillator and pseudo-harmonic oscillator in arbitrary dimensions.
Adams B G, Agboola D, Bagchi B K, Bohm A, Cooper I L, D Martínez, Dirac P A M, Englefield M J, J C Flores-Urbina, R D Mota, Saelen A, Schrödinger E, Schrödinger E, Schrödinger E, V D Granados, Wybourne B G   +15 more
core   +1 more source

Real‐Time 3D Ultrasound Imaging with an Ultra‐Sparse, Low Power Architecture

Advanced Healthcare Materials, EarlyView.
This article presents a novel, ultra‐sparse ultrasound architecture that paves the way for wearable real‐time 3D imaging. By integrating a unique convolutional array with chirped data acquisition, the system achieves high‐resolution volumetric scans at a fraction of the power and hardware complexity.
Colin Marcus, Md Osman Goni Nayeem, Aastha Shah, Jason Hou, Shrihari Viswanath, Maya Eusebio, David Sadat, Anantha P. Chandrakasan, Tolga Ozmen, Canan Dagdeviren   +9 more
wiley   +1 more source

On The Harmonic Oscillator Group [PDF]

, 2011
We discuss the maximum kinematical invariance group of the quantum harmonic oscillator from a view point of the Ermakov-type system. A six parameter family of the square integrable oscillator wave functions, which seems cannot be obtained by the standard
Lopez, Raquel M., Suslov, Sergei K., Vega-Guzman, Jose M.   +2 more
core  

Quantum versus Semiclassical Description of Selftrapping: Anharmonic Effects

, 1999
Selftrapping has been traditionally studied on the assumption that quasiparticles interact with harmonic phonons and that this interaction is linear in the displacement of the phonon.
A. R. Bishop, D. Vitali, D. Vitali, H.-L. Wu, L. Bonci, L. Bonci, M.G.A. Crawford, M.I. Salkola, M.M. Nieto, P. Grigolini, S. Raghavan, S. Raghavan, S. Raghavan, V. M. Kenkre, V.M. Kenkre, V.M. Kenkre, V.M. Kenkre, V.M. Kenkre, V.M. Kenkre   +18 more
core   +2 more sources

Charge Transfer States in Donor–Acceptor Bulk‐Heterojunctions as Triplet–Triplet Annihilation Sensitizer for Solid‐State Photon Upconversion

Advanced Materials Interfaces, EarlyView.
A near‐infrared photosensitizer that facilitates efficient solid‐state photon upconversion by recycling triplets formed within a fullerene‐based donor–acceptor bulk‐heterojunction system is demonstrated. Spectroscopic investigations reveal that the energy of photogenerated charge transfer states of triplet character (3CT) is subsequently transferred to
Maciej Klein, Alexander R. Ireland, Evan G. Moore, Dennis Delic, Ajay K. Pandey   +4 more
wiley   +1 more source

Horizons and the Thermal Harmonic Oscillator

, 2004
We show that two-dimensional anti-de Sitter spacetime (AdS_2) can be put in correspondence, holographically, both with the harmonic oscillator and the free particle.
Brigante M., Cadoni M., Cadoni M., Cadoni M., Cadoni M., Cadoni M., Cadoni M., Cadoni M., Carlip S., de Alfaro V., Gubser S. S., Jing J. L., M. CADONI, Mignemi S., Moretti V., Navarro D. J.   +15 more
core   +2 more sources

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Amido‐Amine Co(II) Precursor‐Based Atomic/Molecular Layer Deposition Processes for Cobalt‐Organic Thin Films and Their Thermal Conversion to CoO Thin Films

Advanced Materials Technologies, EarlyView.
Three new atomic/molecular layer deposition processes are developed for Co‐organic thin films using a promising all‐nitrogen‐coordinated cobalt precursor. The study examines film growth, reaction mechanisms, chemical stability, and decomposition pathways of the resulting films through extensive characterization techniques and DFT calculations ...
Topias Jussila, Jorit Obenlüneschloß, Ji Liu, Olga Partanen, Sami Vasala, Detlef Rogalla, Pieter Glatzel, Michael Nolan, Anjana Devi, Maarit Karppinen   +9 more
wiley   +1 more source