• Issue

    Annalen der Physik: Volume 535, Issue 1

    January 2023

Cover Picture

Free Access

(Ann. Phys. 1/2023)

  • First Published: 16 January 2023
(Ann. Phys. 1/2023) Volume 535 Issue 1, 2023

Nonlinear Optics

Spherical MoS2 nanoparticles are synthesized using ordered 3D mesoporous silica as hard templates, as described by Lei Zhang and co-workers in article number 2200378. The uniform morphology of the nanoparticles mimics an isotropy-like medium for generating a polarization-dependent third-order nonlinear optical response with suppression of second-harmonic generation. Typical spherical MoS2 nanoparticles and the frequency-conversion process are shown in the cover image.

Masthead

Free Access

Masthead: Ann. Phys. 1/2023

  • First Published: 16 January 2023

Perspective

Then & Now

Open Access

Rudolph Clausius (1822–1888) and His Concept of Mathematical Physics

  • First Published: 11 December 2022
Rudolph Clausius (1822–1888) and His Concept of Mathematical Physics

Rudolph Clausius is well known as a pioneer of the mechanical theory of heat (1857) and as the creator of the concept of entropy (1865), often called the discoverer of the second law of thermodynamics (1850). This paper focuses on his concept of mathematical physics, that has influenced modern physics far beyond the field of thermodynamics.

Research Articles

Third-Order Nonlinear Effect and Polarization-Dependent Modulation Using Spherical-Like MoS2 Nanoparticles

  • First Published: 31 October 2022
Third-Order Nonlinear Effect and Polarization-Dependent Modulation Using Spherical-Like MoS2 Nanoparticles

Spherical MoS2 nanoparticles (NPs) are synthesized utilizing ordered 3D mesoporous silica (EP-FDU-12) as hard templates. The independent third harmonic generation (THG) is detected in artificial spherical-like MoS2 NPs and the polarization-dependent is observed between pump fundamental wave and THG. The uniformity morphology of NPs mimics an isotropy-like medium for suppressing second harmonic generation and isolating third-order nonlinear optical response.

Phase Covariant Channel: Quantum Speed Limit of Evolution

  • First Published: 21 November 2022
Phase Covariant Channel: Quantum Speed Limit of Evolution

The phase-covariant map describes the physical processes involving absorption, emission and pure dephasing. To investigate the effect of phase covariant maps on quantum speed limit time ( τ Q S L ) $(\tau_{QSL})$ , they consider the maps under various combinations of the above processes and investigate the dependence of τ Q S L $\tau_{QSL}$ on quantum memory (ζ). For absorption-free phase covariant maps, both CP-(in)divisible, (non)-Markovian dephasing are taken into account. The role of coherence-mixedness ( M c l ) $(M_{cl})$ balance on the speed limit time is checked in the presence of both vacuum and finite temperature effects. For the initial maximal coherent state, they show that the presence of a CP-indivisible non-Markovian dephasing map does not always speed up the quantum evolution. They also investigate the rate at which Holevo's information changes and the action quantum speed of evolution for specific cases of the phase covariant map.

Regular Electric Field in Electromagnetic Coupled to a Scalar Field

  • First Published: 20 November 2022
Regular Electric Field in Electromagnetic Coupled to a Scalar Field

In the framework of nonminimally coupled electromagnetic and scalar fields in flat spacetime, the existence of non-singular electric fields is proved for an electric monopole. A formalism is introduced upon which the coupled regular-electric and scalar fields are obtained. For a given regular electric field this formalism implies two supersymmetric coupling functions corresponding to a scalar and a phantom field.

Open Access

Enhancement of Non-Gaussianity and Nonclassicality of Photon-Added Displaced Fock State: A Quantitative Approach

  • First Published: 20 November 2022
Enhancement of Non-Gaussianity and Nonclassicality of Photon-Added Displaced Fock State: A Quantitative Approach

A quantitative analysis of non-Gaussian and nonclassical aspects of photon added displaced Fock state is performed using a number of measures, like Wigner–Yanese skew information, entanglement potential, Wigner logarithmic negativity, and relative entropy of non-Gaussianity. Robustness of the negativity of the Wigner function over different noise channels is also studied.

Oscillator Laser Model

  • First Published: 22 November 2022
Oscillator Laser Model

Population fluctuation spectra in the superradiant LEDs are found analytically by modeling the lasing medium as a set of normal and inverted harmonic oscillators. Collective Rabi splitting peaks in the intensity fluctuation spectra and growing of population fluctuations with the pump are found.

Virtual Source of a Swallowtail Beam

  • First Published: 20 November 2022
Virtual Source of a Swallowtail Beam

By applying the virtual source method, we obtain the exact and the paraxial expressions of the Swallowtail beams (SBs). Experimental results indicate the self-accelerating and self-focusing features of the paraxial SBs.

Optical Nonlinearity of Emerging ZrS2 and HfS2 Semiconductors

  • First Published: 13 December 2022
Optical Nonlinearity of Emerging ZrS2 and HfS2 Semiconductors

ZrS2 and HfS2 films are prepared by chemical vapor deposition. Saturable absorption happens in ZrS2 due to the larger ground state absorption than that of excited state. Reverse saturable absorption appears in HfS2 due to the two-photon absorption. The figure of merit values of ZrS2 and HfS2 are much larger than graphene at the wavelength of 800 nm.

Magnetoelectric-Field Electrodynamics: Search for Magnetoelectric Point Scatterers

  • First Published: 13 December 2022
Magnetoelectric-Field Electrodynamics: Search for Magnetoelectric Point Scatterers

Mesoscopic structures with electric and magnetic dipole-carrying excitations behave like point scatterers with their inherent magnetoelectricity. The magnetoelectric resonance effect arises from the coupling of electrostatic and magnetostatic oscillations. We have the combined effects of magnetic dipole precession in a bias magnetic field along with electric quadrupole precession in an electric field gradient.

Transmission Reflection Integrated Programmable Metasurface for Real-Time Beam Control and High Efficiency Transmission Polarization Conversion

  • First Published: 14 December 2022
Transmission Reflection Integrated Programmable Metasurface for Real-Time Beam Control and High Efficiency Transmission Polarization Conversion

A schematic model of the proposed transmission-reflection-integrated programmable coding multifunctional metasurface which can implement multiple independent functionalities at the same frequency band, including multibeam dynamic splitting, active dual-beam scanning, complete reflection, and transmission polarization conversion is shown in the table of contents.

Collective Behavior in Quantum Interference: A Supplementary Superposition Principle

  • First Published: 14 December 2022
Collective Behavior in Quantum Interference: A Supplementary Superposition Principle

Quantum physics is based on the superposition of amplitudes. Interactions occur only along the path associated with each amplitude. This is challenged to include collective interactions along a given path and shown to be a viable alternative to the standard superposition principle in systems with more than two bodies.

Fast Generation of 2N-Photon Fock States using Shortcuts to Adiabaticity and Ultrastrong Light–Matter Coupling

  • First Published: 14 December 2022
Fast Generation of 2N-Photon Fock States using Shortcuts to Adiabaticity and Ultrastrong Light–Matter Coupling

Off-resonantly driving a three-level atom can create 2N photons from the vacuum, where the upper two levels of the atom are ultrastrongly coupled to a single-mode cavity. This can prove that the vacuum of space is not empty but filled with a sea of virtual particles.

Enhanced Charging in Common Environments Compared to Independent Environments for Two-Level Systems

  • First Published: 14 December 2022
Enhanced Charging in Common Environments Compared to Independent Environments for Two-Level Systems

Compared with a quantum battery and a charger in their own independent environment, the charging performance for a quantum battery and a charger in common environments can be achieved by increasing the number of environments and setting appropriate coupling strength between the system and the environment.

Universal Global Cloning of Continuous Variables Entanglement

  • First Published: 14 December 2022
Universal Global Cloning of Continuous Variables Entanglement

In this paper, a 1-to-N universal global entanglement cloning machine (UGECM), which is composed of only single deterministic linear amplifiers and two N-port beam splitters, is proposed. It is demonstrated that the entanglement replicas of this UGECM are of high fidelity and inseparability preservation. Such a UGECM may find its new applications in quantum entanglement broadcasting.

Broadband Plasmon-Induced Transparency to a Electromagnetically Induced Absorption Conversion Metastructure Based on Germanium

  • First Published: 14 December 2022
Broadband Plasmon-Induced Transparency to a Electromagnetically Induced Absorption Conversion Metastructure Based on Germanium

The two states of GMST, the broadband PIT phenomenon when Ge conductivity is 0, and the broadband EIA phenomenon when Ge conductivity is 1 × 106 are shown in this image.

Interactions of Localized Wave Structures on Periodic Backgrounds for the Coupled Lakshmanan–Porsezian–Daniel Equations in Birefringent Optical Fibers

  • First Published: 14 December 2022
Interactions of Localized Wave Structures on Periodic Backgrounds for the Coupled Lakshmanan–Porsezian–Daniel Equations in Birefringent Optical Fibers

Localized waves on periodic backgrounds are constructed by using the matrix analysis and SU(2) transformation for the coupled Lakshmanan–Porsezian–Daniel equations. Moreover, interactions and dynamic behaviors of these localized waves are shown. The results may be applicable to the relevant experimental investigations in optical fibers, fluid dynamics and other media.

Quantum-Error-Rejection for Hyperentanglement Transmission without Calibrated Reference Frames

  • First Published: 14 December 2022
Quantum-Error-Rejection for Hyperentanglement Transmission without Calibrated Reference Frames

In this paper, a spatial-polarization hyperentanglement transmission scheme with misalignment reference frames between the communication parties is proposed. By implementing the scheme, the decoherence effect caused by the misalignment of the reference frames between the communication parties can be completely suppressed, and the success probability of the scheme can theoretically reach 100%.

Open Access

Particle Spin Described by Quantum Hamilton Equations

  • First Published: 14 December 2022
Particle Spin Described by Quantum Hamilton Equations

The quantum generalization of the classical Hamilton equations is derived for spinning particles in Nelson's stochastic mechanics. The solutions of these equations for a particle in a homogeneous magnetic field lead to a stochastically spinning particle with the well-known quantized expectation values.

High-Fidelity and Low-Cost Hyperparallel Quantum Gates for Photon Systems via Λ-Type Systems

  • First Published: 14 December 2022
High-Fidelity and Low-Cost Hyperparallel Quantum Gates for Photon Systems via Λ-Type Systems

Assisted by a three-level Λ-type atom,  an underlying polarization–polarization swap (P-P-SWAP) quantum gate is constructed with near-unit fidelity. Moreover, the hyper-controlled-not and hyper-controlled-controlled-not gates are implemented perfectly with 2 and 4 P-P-SWAP gates, respectively, both of which are high fidelity in practical conditions and can work efficiently with a relatively lower-Q factor.

Open Access

Gravitational Redshift Induces Quantum Interference

  • First Published: 14 December 2022
Gravitational Redshift Induces Quantum Interference

Gravitational redshift is shown to act as a quantum channel on the quantum state of propagating photons. The transformation induced is known in quantum optics as mode-mixing, which shifts excitations between field modes. This opens the possibility of generating nonclassical states of light through propagation in a gravitational field, and testing the predictions of quantum field theory in curved spacetime.