Multiband dispersion and warped vortices of strongly-interacting photons
- URL: http://arxiv.org/abs/2502.11553v1
- Date: Mon, 17 Feb 2025 08:35:10 GMT
- Title: Multiband dispersion and warped vortices of strongly-interacting photons
- Authors: Bankim Chandra Das, Dmytro Kiselov, Lee Drori, Ariel Nakav, Alexander Poddubny, Ofer Firstenberg,
- Abstract summary: We study quantum correlations between interacting photons realized through co-propagating Rydberg polaritons.
For three photons, the dispersion breaks the symmetry between a photon pair propagating ahead versus behind a single photon.
- Score: 36.939655407596426
- License:
- Abstract: We study quantum correlations between interacting photons realized through co-propagating Rydberg polaritons. We show that the evolution of the $n$-photon wavefunction is governed by a multiband dispersion featuring one massive mode and $n-1$ degenerate modes, such as two Dirac cones for $n=3$. The band structure exhibits an $n$-fold rotational symmetry, including an $n$-fold warped light cone, in contrast to the single-band, parabolic approximation often assumed for interacting polaritons. For three photons, the dispersion breaks the symmetry between a photon pair propagating ahead versus behind a single photon. We confirm these findings experimentally by measuring the three-photon phase and intensity correlation functions, revealing trigonal warping of the quantum vortex-ring generated by the three-photon interactions. Our analytical results are supported by rigorous numerical modeling that fully accounts for the photon propagation before, inside, and after the finite atomic medium. These findings advance the understanding of multi-photon interactions and the development of future multi-photon control tools.
Related papers
- Correlated relaxation and emerging entanglement in arrays of $Λ$-type atoms [83.88591755871734]
We show that the atomic entanglement emerges in the course of relaxation and persists in the final steady state of the system.
Our findings open a new way to engineer dissipation-induced entanglement.
arXiv Detail & Related papers (2024-11-11T08:39:32Z) - Ultra-strong trion-polaritons [0.0]
Trion-polaritons (TP) in microcavity semiconductors are a promising avenue for realizing strong polariton interactions and many-body polariton phases.
We develop a quantum field theoretical formalism to study the formation of trion-polaritons in a microcavity semiconductor doped with itinerant electrons.
arXiv Detail & Related papers (2024-03-15T21:26:35Z) - Spectral signature of high-order photon processes mediated by
Cooper-pair pairing [0.0]
Superconducting circuits have almost exclusively operated in the regime where phase fluctuations are smaller than unity.
Superconducting circuits have almost exclusively operated in the regime where phase fluctuations are smaller than unity.
This work explores a new regime of high-order photon interactions in microwave quantum optics, with applications ranging from multi-photon quantum logic to the study of highly correlated microwave radiation.
arXiv Detail & Related papers (2023-12-22T21:29:25Z) - Quantum vortices of strongly interacting photons [52.131490211964014]
Vortices are hallmark of nontrivial dynamics in nonlinear physics.
We report on the realization of quantum vortices resulting from a strong photon-photon interaction in a quantum nonlinear optical medium.
For three photons, the formation of vortex lines and a central vortex ring attests to a genuine three-photon interaction.
arXiv Detail & Related papers (2023-02-12T18:11:04Z) - Probing many-body correlations using quantum-cascade correlation
spectroscopy [0.0]
The radiative quantum cascade, i.e. the consecutive emission of photons from a ladder of energy levels, is of fundamental importance in quantum optics.
Here, we use exciton polaritons to explore the cascaded emission of photons in the regime where individual transitions of the ladder are not resolved.
Remarkably, the measured photon-photon correlations exhibit a strong dependence on the polariton energy, and therefore on the underlying polaritonic interaction strength.
arXiv Detail & Related papers (2022-12-18T09:51:12Z) - Entanglement of annihilation photons [141.5628276096321]
We present the results of a new experimental study of the quantum entanglement of photon pairs produced in positron-electron annihilation at rest.
Despite numerous measurements, there is still no experimental proof of the entanglement of photons.
arXiv Detail & Related papers (2022-10-14T08:21:55Z) - Two-photon emission in detuned resonance fluorescence [0.0]
We discuss two-photon correlations from the side peaks that are formed when a two-level system emitter is driven coherently.
We show that their combination leads to a neat picture compatible with perturbative two-photon scattering.
This should help to control, enhance and open new regimes of multiphoton emission.
arXiv Detail & Related papers (2022-10-07T17:59:38Z) - Auto-heterodyne characterization of narrow-band photon pairs [68.8204255655161]
We describe a technique to measure photon pair joint spectra by detecting the time-correlation beat note when non-degenerate photon pairs interfere at a beamsplitter.
The technique is well suited to characterize pairs of photons, each of which can interact with a single atomic species.
arXiv Detail & Related papers (2021-01-08T18:21:30Z) - 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) - Emergent photon pair propagation in circuit QED with superconducting
processors [0.0]
We show that for a suitable choice of the coupling ratio between different levels, the single photon propagation is suppressed and the propagation of photon pairs emerges.
This propagation of photon pairs leads to the pair superfluid of polaritons associated to the system.
arXiv Detail & Related papers (2020-02-27T19:44:48Z)
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.