Contextual particle propagation in a three-path interferometer
- URL: http://arxiv.org/abs/2312.13670v1
- Date: Thu, 21 Dec 2023 08:44:59 GMT
- Title: Contextual particle propagation in a three-path interferometer
- Authors: Holger F. Hofmann
- Abstract summary: Quantum information is based on contradictions between classical logic and quantum coherence.
I discuss the paradoxical aspects of single photon interferences revealed by the three-path interferometer.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Quantum information is based on the apparent contradictions between classical
logic and quantum coherence described by Kochen-Specker contextuality.
Surprisingly, this contradiction can be demonstrated in a comparatively simple
three-path interferometer, where it is impossible to trace the path of a single
photon through five consecutive stages of the interferometer. Here, I discuss
the paradoxical aspects of single photon interferences revealed by the
three-path interferometer and point out the essential role of dynamics in
quantum information.
Related papers
- Entanglement-induced collective many-body interference [62.22849132943891]
We propose an interferometric setting through which N-particle interference can be observed, while any interference of lower orders is strictly suppressed.
We experimentally demonstrate this effect in a four-photon interferometer, where the interference is nonlocal, in principle.
A joint detection of all four photons identifies a high-visibility interference pattern varying as a function of their collective four-particle phase, a genuine four-body property.
arXiv Detail & Related papers (2023-10-12T18:00:02Z) - Quantum interference between non-identical single particles [5.9606530319748385]
Quantum interference between identical single particles reveals the intrinsic quantum statistic nature of particles.
Our work extends the understanding of the quantum interference effects and demonstrates a versatile experimental platform for studying and engineering quantum statistics of particles.
arXiv Detail & Related papers (2023-08-24T09:36:35Z) - Sequential propagation of a single photon through five measurement
contexts in a three-path interferometer [0.0]
Quantum contextuality describes scenarios in which it is impossible to explain the experimental evidence in terms of a measurement independent reality.
I introduce a three-path interferometer in which all five contexts needed for a demonstration of contextuality are realized in sequence.
arXiv Detail & Related papers (2023-08-04T00:01:40Z) - 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) - Quantum fluctuations in the small Fabry-Perot interferometer [77.34726150561087]
We study the small, of the size of the order of the wavelength, interferometer with the main mode excited by a quantum field from a nano-LED or a laser.
We find the field and the photon number fluctuation spectra inside and outside the interferometer.
Results help the study, design, manufacture, and use small elements of quantum optical integrated circuits.
arXiv Detail & Related papers (2022-12-27T10:02:25Z) - Distinguishability and mixedness in quantum interference [1.2885809002769635]
We study the impact of distinguishability and mixedness -- two fundamental properties of quantum states -- on quantum interference.
We show that these can influence the interference of multiple particles in different ways, leading to effects that cannot be observed in the interference of two particles alone.
arXiv Detail & Related papers (2022-01-12T19:08:45Z) - Quantum asymmetry and noisy multi-mode interferometry [55.41644538483948]
Quantum asymmetry is a physical resource which coincides with the amount of coherence between the eigenspaces of a generator.
We show that the asymmetry may emphincrease as a result of a emphdecrease of coherence inside a degenerate subspace.
arXiv Detail & Related papers (2021-07-23T07:30:57Z) - Symmetry allows for distinguishability in totally destructive
many-particle interference [52.77024349608834]
We investigate, in a four photon interference experiment in a laser-written waveguide structure, how symmetries control the suppression of many-body output events of a $J_x$ unitary.
We show that totally destructive interference does not require mutual indistinguishability between all, but only between symmetrically paired particles.
arXiv Detail & Related papers (2021-02-19T16:37:19Z) - Quantum-Clustered Two-Photon Walks [68.8204255655161]
We demonstrate a previously unknown two-photon effect in a discrete-time quantum walk.
Two identical bosons with no mutual interactions can remain clustered together.
The two photons move in the same direction at each step due to a two-photon quantum interference phenomenon.
arXiv Detail & Related papers (2020-03-12T17:02:35Z) - All-order momentum correlations of three ultracold bosonic atoms
confined in triple-well traps: Signatures of emergent many-body quantum phase
transitions and analogies with three-photon quantum-optics interference [0.0]
All-order momentum correlation functions associated with the time-of-flight spectroscopy of three spinless ultracold bosonic interacting neutral atoms are presented.
Our investigations target matter-wave interference of massive particles, aiming at characterizing the quantum states of trapped manifested or repulsively interacting ultracold particles.
arXiv Detail & Related papers (2020-02-02T03:23:38Z)
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.