Results 101 to 110 of about 504,986 (312)

Bioinspired Mechanisms and Actuation of Soft Robotic Crawlers

open access: yesAdvanced Science, EarlyView.
Researchers have been developing soft materials and robotic crawlers inspired by soft‐bodied animals to mimic effective crawling in complex environments. This review explores the state‐of‐the‐art in soft crawlers, highlighting the interaction between materials, crawling mechanisms, actuation, and applications. The review concludes by providing insights
Min Pan   +6 more
wiley   +1 more source

About an (Im‐)Possible Anomaly in Band Structure Theory

open access: yesphysica status solidi (b), Volume 260, Issue 1, January 2023., 2023
The envelope function approach is used to establish fundamental analogies between certain types of 2D band structures and classes of elementary particles known as luxons, tardyons, and tachyons. Anomalies of the three fundamental spinor band structures and in the spectrum of Landau levels are discussed.
Alexander Quandt
wiley   +1 more source

Quantum Dynamics of a Few-Photon Parametric Oscillator

open access: yesPhysical Review X, 2019
Modulating the frequency of a harmonic oscillator at nearly twice its natural frequency leads to amplification and self-oscillation. Above the oscillation threshold and in the presence of a nonlinearity, the field settles into a coherent oscillating ...
Zhaoyou Wang   +6 more
doaj   +1 more source

Phase operator of the quantum supersymmetric harmonic oscillator [PDF]

open access: yesarXiv, 2007
After a brief introduction recalling how, in the limit in which the mass and the electric charge of the electron and the positron tend to zero, Quantum Electrodynamics reduces to a collection of uncoupled quantum supersymmetric harmonic oscillators, the phase operator of the quantum fermionic harmonic oscillator and of the quantum supersymmetric ...
arxiv  

Braid group representations from a deformation of the harmonic oscillator algebra [PDF]

open access: yes, 2016
We describe a new technique to obtain representations of the braid group B_n from the R-matrix of a quantum deformed algebra of the one dimensional harmonic oscillator. We consider the action of the R-matrix not on the tensor product of representations of the algebra, that in the harmonic oscillator case are infinite dimensional, but on the subspace of
arxiv   +1 more source

Manipulation of Ferroic Orders via Continuous Biaxial Strain Engineering in Multiferroic Bismuth Ferrite

open access: yesAdvanced Science, EarlyView.
This study explores the evolution of ferroelectric (FE) and antiferromagnetic (AFM) orders in freestanding BiFeO3 films under anisotropic strain using rotational anisotropy second harmonic generation (RA‐SHG) and first‐principles calculations. The research reveals reversible control of in‐plane FE polarization and significant AFM order rotation ...
Jiesu Wang   +15 more
wiley   +1 more source

Quantum Harmonic Oscillator Sonification [PDF]

open access: yes, 2010
This work deals with the sonification of a quantum mechanical system and the processes that occur as a result of its quantum mechanical nature and interactions with other systems. The quantum harmonic oscillator is not only regarded as a system with sonifiable characteristics but also as a storage medium for quantum information.
Gerhard Eckel   +2 more
openaire   +2 more sources

The Fourier Transform on Quantum Euclidean Space

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
We study Fourier theory on quantum Euclidean space. A modified version of the general definition of the Fourier transform on a quantum space is used and its inverse is constructed.
Kevin Coulembier
doaj   +1 more source

Tunable Polariton Rabi Oscillation in Phase‐Changing Perovskite Microcavities

open access: yesAdvanced Science, EarlyView.
This work demonstrated the tunable Rabi oscillation of exciton‐polaritons in MAPbBr3 perovskites due to the emergence of ferroelectricity during the crystallographic phase transition. Both the Rabi oscillation and exciton oscillator strength exhibit an unusual temperature dependence that is related to the emergence of ferroelectricity in the tetragonal
Hyeon‐Seo Choi   +11 more
wiley   +1 more source

Parameter and q asymptotics of Lq‐norms of hypergeometric orthogonal polynomials

open access: yesInternational Journal of Quantum Chemistry, Volume 123, Issue 2, January 15, 2023., 2023
The weighted Lq‐norms of orthogonal polynomials are determined when q and the polynomial's parameter tend to infinity. They are given in this work by the leading term of the q and parameter asymptotics of the corresponding quantities of the associated probability density. These results are not only interesting per se, but also because they control many
Nahual Sobrino, Jesus S. Dehesa
wiley   +1 more source

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