Exotic interactions mediated by a non-Hermitian photonic bath
- URL: http://arxiv.org/abs/2109.13255v2
- Date: Thu, 19 May 2022 09:02:17 GMT
- Title: Exotic interactions mediated by a non-Hermitian photonic bath
- Authors: Federico Roccati, Salvatore Lorenzo, Giuseppe Calaj\`o, G. Massimo
Palma, Angelo Carollo, Francesco Ciccarello
- Abstract summary: We study the exotic interaction between emitters mediated by the photonic modes of a lossy photonic lattice.
We show in a paradigmatic case study that structured losses in the field can seed exotic emission properties.
These findings introduce a new paradigm of light-mediated interactions with unprecedented features.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Photon-mediated interactions between quantum emitters in engineered photonic
baths is an emerging area of quantum optics. At the same time, non-Hermitian
(NH) physics is currently thriving, spurred by the exciting possibility to
access new physics in systems ruled by non-trivial NH Hamiltonians - in
particular photonic lattices - which can challenge longstanding tenets such as
the Bloch theory of bands. Here, we combine these two fields and study the
exotic interaction between emitters mediated by the photonic modes of a lossy
photonic lattice described by a NH Hamiltonian. We show in a paradigmatic case
study that structured losses in the field can seed exotic emission properties.
Photons can mediate dissipative, fully non-reciprocal, interactions between the
emitters with range critically dependent on the loss rate. When this loss rate
corresponds to a bare-lattice exceptional point, the effective couplings are
exactly nearest-neighbour, implementing a dissipative, fully non-reciprocal,
Hatano-Nelson model. Counter-intuitively, this occurs irrespective of the
lattice boundary conditions. Thus photons can mediate an effective emitters'
Hamiltonian which is translationally-invariant despite the fact that the field
is not. We interpret these effects in terms of metastable atom-photon dressed
states, which can be exactly localized on only two lattice cells or extended
across the entire lattice. These findings introduce a new paradigm of
light-mediated interactions with unprecedented features such as
non-reciprocity, non-trivial dependence on the field boundary conditions and
range tunability via a loss rate.
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) - Hermitian and Non-Hermitian Topology from Photon-Mediated Interactions [3.2326259807823026]
We find general theorems that govern the topological properties (if any) of photon-mediated Hamiltonians.
For a photonic lattice where each mode is coupled to a single quantum emitter, the Altland-Zirnbauer classification of topological insulators allows us to link the topology of the atoms to that of the photonic bath.
arXiv Detail & Related papers (2023-03-01T19:00:01Z) - 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) - Fractional Quantum Zeno Effect Emerging from Non-Hermitian Physics [12.706932285002544]
We predict quantum non-Hermitian phenomena: the fractional quantum Zeno (FQZ) effect and FQZ-induced photon antibunching.
We find FQZ-induced strong photon antibunching in the steady state of a driven emitter even for weak nonlinearities.
Remarkably, we identify that the sub-Poissonian quantum statistics of photons, which has no classical analogs, stems here from the key role of non-Hermiticity.
arXiv Detail & Related papers (2022-07-07T17:41:24Z) - Review on coherent quantum emitters in hexagonal boron nitride [91.3755431537592]
I discuss the state-of-the-art of defect centers in hexagonal boron nitride with a focus on optically coherent defect centers.
The spectral transition linewidth remains unusually narrow even at room temperature.
The field is put into a broad perspective with impact on quantum technology such as quantum optics, quantum photonics as well as spin optomechanics.
arXiv Detail & Related papers (2022-01-31T12:49:43Z) - Quantum Interference between Photons and Single Quanta of Stored Atomic
Coherence [19.90349094720023]
We observe quantum interference between flying photons and a single quantum of stored atomic coherence (magnon) in an atom-light beam splitter interface.
The bunching behavior that characterizes bosons is observed, but counterintuitively, fermionlike antibunching as well.
The hybrid nature of the demonstrated magnon-photon quantum interface can be applied to versatile quantum memory platforms.
arXiv Detail & Related papers (2021-09-23T05:25:47Z) - Enhanced nonlinear quantum metrology with weakly coupled solitons and
particle losses [58.720142291102135]
We offer an interferometric procedure for phase parameters estimation at the Heisenberg (up to 1/N) and super-Heisenberg scaling levels.
The heart of our setup is the novel soliton Josephson Junction (SJJ) system providing the formation of the quantum probe.
We illustrate that such states are close to the optimal ones even with moderate losses.
arXiv Detail & Related papers (2021-08-07T09:29:23Z) - Photon-mediated interactions near a Dirac photonic crystal slab [68.8204255655161]
We develop a theory of dipole radiation near photonic Dirac points in realistic structures.
We find positions where the nature of the collective interactions change from being coherent to dissipative ones.
Our results significantly improve the knowledge of Dirac light-matter interfaces.
arXiv Detail & Related papers (2021-07-01T14:21:49Z) - Observation-dependent suppression and enhancement of two-photon
coincidences by tailored losses [68.8204255655161]
Hong-Ou-Mandel (HOM) effect can lead to a perfect suppression of two-particle coincidences between the output ports of a balanced beam splitter.
In this work, we demonstrate experimentally that the two-particle coincidence statistics of two bosons can instead be seamlessly tuned to substantial enhancement.
Our findings reveal a new approach to harnessing non-Hermitian settings for the manipulation of multi-particle quantum states.
arXiv Detail & Related papers (2021-05-12T06:47:35Z) - 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)
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.