Stationary Two-State System in Optics using Layered Materials
- URL: http://arxiv.org/abs/2303.08395v4
- Date: Thu, 16 May 2024 04:48:35 GMT
- Title: Stationary Two-State System in Optics using Layered Materials
- Authors: Ken-ichi Sasaki,
- Abstract summary: We identify two quantum states with zero energy expectation values.
One replicates the scattering and absorption of light, a phenomenon familiar in classical optics.
The other is more fundamentally associated with photon creation.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: In scenarios where electrons are confined to a flat surface, such as graphene, quantizing electrodynamics reveals intriguing insights. We find that one of Maxwell's equations manifests as part of the Hamiltonian, leading to novel constraints on physical states due to residual gauge invariance. We identify two quantum states with zero energy expectation values: one replicates the scattering and absorption of light, a phenomenon familiar in classical optics, while the other is more fundamentally associated with photon creation. These states form an inseparable two-state system, giving a new formula for reflection and transmission coefficients with photon emission effects. Notably, there exists a special thickness of the surface where these states decouple, offering intriguing possibilities for exploring physics through symmetry-based perturbations involving concepts of parity, axial gauge fields, and surface deformation.
Related papers
- Non-Hermitian Effects in Dicke models [18.25522741939446]
We study the manifestation of non-Hermitian effects in the Dicke model of light-matter interaction.
Our findings deepen the understanding of non-Hermitian physics in light-matter interaction.
arXiv Detail & Related papers (2024-11-13T06:30:10Z) - Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling [83.88591755871734]
We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide.
When the frequency of this motion approaches twice the qubit resonance frequency, it induces parametric generation of photons and excitation of the qubits.
We develop a comprehensive general theoretical framework that incorporates both perturbative diagrammatic techniques and a rigorous master-equation approach.
arXiv Detail & Related papers (2024-08-30T15:54:33Z) - Photon bunching in high-harmonic emission controlled by quantum light [0.0]
Recent theories have laid the groundwork for understanding how quantum-optical properties affect high-field photonics.
We demonstrate a new experimental approach that transduces some properties of a quantum-optical state through a strong-field nonlinearity.
Our results suggest that perturbing strong-field dynamics with quantum-optical states is a viable way to coherently control the generation of these states at short wavelengths.
arXiv Detail & Related papers (2024-04-08T12:53:42Z) - A theory of local photons with applications in quantum field theory [0.0]
In quantum optics it is usual to describe the basic energy quanta of the electromagnetic (EM) field, photons, in terms of monochromatic waves.
We take an alternative approach and quantise the free EM field in both one and three dimensions in terms of quanta that are perfectly localised.
Here we show that, unlike standard quantisation schemes, our approach predicts the causal propagation of localised photonic wave packets.
arXiv Detail & Related papers (2023-03-08T16:47:09Z) - Probing and harnessing photonic Fermi arc surface states using
light-matter interactions [62.997667081978825]
We show how to image the Fermi arcs by studying the spontaneous decay of one or many emitters coupled to the system's border.
We demonstrate that the Fermi arc surface states can act as a robust quantum link.
arXiv Detail & Related papers (2022-10-17T13:17:55Z) - Photon-mediated Stroboscopic Quantum Simulation of a $\mathbb{Z}_{2}$
Lattice Gauge Theory [58.720142291102135]
Quantum simulation of lattice gauge theories (LGTs) aims at tackling non-perturbative particle and condensed matter physics.
One of the current challenges is to go beyond 1+1 dimensions, where four-body (plaquette) interactions, not contained naturally in quantum simulating devices, appear.
We show how to prepare the ground state and measure Wilson loops using state-of-the-art techniques in atomic physics.
arXiv Detail & Related papers (2021-07-27T18:10:08Z) - Two-photon resonance fluorescence of two interacting non-identical
quantum emitters [77.34726150561087]
We study a system of two interacting, non-indentical quantum emitters driven by a coherent field.
We show that the features imprinted by the two-photon dynamics into the spectrum of resonance fluorescence are particularly sensitive to changes in the distance between emitters.
This can be exploited for applications such as superresolution imaging of point-like sources.
arXiv Detail & Related papers (2021-06-04T16:13:01Z) - Linear-optical dynamics of one-dimensional anyons [0.0]
We study the dynamics of bosonic and fermionic anyons defined on a one-dimensional lattice.
We show how to exploit the Aharonov-Bohm effect exhibited by these particles to build a deterministic, entangling two-qubit gate.
In particular we prove that, for a specific value of the exchange factor, an anyonic mirror can generate cat states.
arXiv Detail & Related papers (2020-12-23T20:48:52Z) - Light-matter interactions near photonic Weyl points [68.8204255655161]
Weyl photons appear when two three-dimensional photonic bands with linear dispersion are degenerated at a single momentum point, labeled as Weyl point.
We analyze the dynamics of a single quantum emitter coupled to a Weyl photonic bath as a function of its detuning with respect to the Weyl point.
arXiv Detail & Related papers (2020-12-23T18:51:13Z) - Theory of waveguide-QED with moving emitters [68.8204255655161]
We study a system composed by a waveguide and a moving quantum emitter in the single excitation subspace.
We first characterize single-photon scattering off a single moving quantum emitter, showing both nonreciprocal transmission and recoil-induced reduction of the quantum emitter motional energy.
arXiv Detail & Related papers (2020-03-20T12:14:10Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.