Results 111 to 120 of about 166,448 (322)

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

open access: yesAdvanced 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   +8 more
wiley   +1 more source

1-D Harmonic Oscillator in Snyder Space, the Classic and the Quantum

open access: yes, 2008
The 1-D dimension harmonic oscillator in Snyder space is investigated in its classical and quantum versions. The classical trajectory is obtained and the semiclassical quantization from the phase space trajectories is discussed.
A. Kempf   +13 more
core   +1 more source

Rational extensions of the quantum harmonic oscillator and exceptional Hermite polynomials [PDF]

open access: yes, 2013
We prove that every rational extension of the quantum harmonic oscillator that is exactly solvable by polynomials is monodromy free, and therefore can be obtained by applying a finite number of state-deleting Darboux transformations on the harmonic ...
D. Gómez‐Ullate   +2 more
semanticscholar   +1 more source

The Quantum Harmonic Oscillator in the ESR Model [PDF]

open access: yesFoundations of Physics, 2013
The ESR model proposes a new theoretical perspective which incorporates the mathematical formalism of standard (Hilbert space) quantum mechanics (QM) in a noncontextual framework, reinterpreting quantum probabilities as conditional on detection instead of absolute.
openaire   +5 more sources

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

open access: yesAdvanced 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

Excitation with quantum light. I. Exciting a harmonic oscillator [PDF]

open access: yes, 2016
A theoretical analysis of the interaction between quantum light and matter shows that quantum light can offer advantages over its classical analog.
J. C. L. Carreno, F. Laussy
semanticscholar   +1 more source

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

open access: yesAdvanced 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   +12 more
wiley   +1 more source

Stabilization of the Benzene Radical Trianion in an Inverse‐Sandwich Yttrium Complex

open access: yesAngewandte Chemie, EarlyView.
A new type of benzene anion state is born: The unprecedented benzene radical trianion embedded in an inverse‐sandwich yttrium complex was synthesized by a one‐electron chemical reduction of its benzene dianion precursor using potassium graphite in the presence of [2.2.2]‐cryptand.
Weiqing Mao   +5 more
wiley   +2 more sources

Geometric Phase and Non-Adiabatic Effects in an Electronic Harmonic Oscillator

open access: yes, 2011
Steering a quantum harmonic oscillator state along cyclic trajectories leads to a path-dependent geometric phase. Here we describe an experiment observing this geometric phase in an electronic harmonic oscillator.
A. A. Abdumalikov   +8 more
core   +1 more source

Coupled harmonic oscillators and their quantum entanglement [PDF]

open access: yesPhysical Review E, 2018
A system of two coupled quantum harmonic oscillators with the Hamiltonian ${\hat H}=\frac{1}{2}\left(\frac{1}{m_1}{\hat p}^{2}_1 + \frac{1}{m_2}{\hat p}^{2}_2+A x^2_1+B x^2_2+ C x_1 x_2\right)$ can be found in many applications of quantum and nonlinear physics, molecular chemistry, and biophysics. The stationary wave function of such a system is known,
openaire   +3 more sources

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