Entanglement Assisted Non-local Optical Interferometry in a Quantum Network
- URL: http://arxiv.org/abs/2509.09464v2
- Date: Fri, 12 Sep 2025 19:56:06 GMT
- Title: Entanglement Assisted Non-local Optical Interferometry in a Quantum Network
- Authors: P. -J. Stas, Y. -C. Wei, M. Sirotin, Y. Q. Huan, U. Yazlar, F. Abdo Arias, E. Knyazev, G. Baranes, B. Machielse, S. Grandi, D. Riedel, J. Borregaard, H. Park, M. Lončar, A. Suleymanzade, M. D. Lukin,
- Abstract summary: We demonstrate the use of entangled quantum memories in a quantum network of Silicon-vacancy centers in diamond nano-cavities.<n>Results open the door for a new class of quantum enhanced imaging applications.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: The sensitivity of non-local optical measurements at low light intensities, such as those involved in long baseline telescope arrays, can be improved by using remote entanglement. Here, we demonstrate the use of entangled quantum memories in a quantum network of Silicon-vacancy centers in diamond nano-cavities to experimentally perform such non-local phase measurements. Specifically, we combine the generation of event-ready remote quantum entanglement, photon mode erasure that hides the "which-path" information of temporally and spatially separated incoming optical modes, and non-local, non-destructive photon heralding enabled by remote entanglement to perform a proof-of-concept entanglement-assisted differential phase measurement of weak incident light between two spatially separate stations. Demonstrating successful operation of the remote phase sensing protocol with a fiber link baseline up to 1.55 km, our results open the door for a new class of quantum enhanced imaging applications.
Related papers
- Memory-Assisted Nonlocal Interferometer Towards Long-Baseline Telescopes [14.056461958187507]
memory-assisted nonlocal interferometer achieves fiber-link baseline up to 20 km.<n> paves the way for future application of quantum memories in astronomical observation.
arXiv Detail & Related papers (2025-11-14T06:25:26Z) - High-dimensional quantum correlation measurements with an adaptively
gated hybrid single-photon camera [58.720142291102135]
We propose an adaptively-gated hybrid intensified camera (HIC) that combines a high spatial resolution sensor and a high temporal resolution detector.
With a spatial resolution of nearly 9 megapixels and nanosecond temporal resolution, this system allows for the realization of previously infeasible quantum optics experiments.
arXiv Detail & Related papers (2023-05-25T16:59:27Z) - Large baseline optical imaging assisted by single photons and linear
quantum optics [0.0]
We show that it is possible to extend the baseline of an interferometric optical telescope and thus improve diffraction-limited imaging of point source positions.
The quantum interferometer is based on single-photon sources, linear optical circuits, and efficient photon number counters.
arXiv Detail & Related papers (2022-12-16T15:00:32Z) - On-chip quantum information processing with distinguishable photons [55.41644538483948]
Multi-photon interference is at the heart of photonic quantum technologies.
Here, we experimentally demonstrate that detection can be implemented with a temporal resolution sufficient to interfere photons detuned on the scales necessary for cavity-based integrated photon sources.
We show how time-resolved detection of non-ideal photons can be used to improve the fidelity of an entangling operation and to mitigate the reduction of computational complexity in boson sampling experiments.
arXiv Detail & Related papers (2022-10-14T18:16:49Z) - Ultra-long photonic quantum walks via spin-orbit metasurfaces [52.77024349608834]
We report ultra-long photonic quantum walks across several hundred optical modes, obtained by propagating a light beam through very few closely-stacked liquid-crystal metasurfaces.
With this setup we engineer quantum walks up to 320 discrete steps, far beyond state-of-the-art experiments.
arXiv Detail & Related papers (2022-03-28T19:37:08Z) - Telecom-band quantum interference of frequency-converted photons from
remote detuned NV centers [0.0]
Entanglement over quantum networks has the promise of realizing fundamentally new technologies.
To move towards metropolitan-scale quantum network test beds, the creation and transmission of indistinguishable single photons over existing telecom infrastructure is key.
We report the interference of photons emitted by remote, spectrally detuned NV center-based network nodes, using quantum frequency conversion to the telecom L-band.
arXiv Detail & Related papers (2022-01-31T19:01:01Z) - Optical Entanglement of Distinguishable Quantum Emitters [0.0]
We propose and demonstrate an efficient method for entangling emitters with optical transitions separated by many linewidths.
In our approach, electro-optic modulators enable a single photon to herald a parity measurement on a pair of spin qubits.
Working with distinguishable emitters allows for individual qubit addressing and readout, enabling parallel control and entanglement of both co-located and spatially separated emitters.
arXiv Detail & Related papers (2021-08-24T19:37:08Z) - Few-mode-fiber technology fine-tunes losses of quantum communication
systems [0.0]
Time-bins for quantum communication are impractical over long distances.
We propose a few-mode fiber space-division multiplexing platform working with angular momentum modes.
We experimentally demonstrate our proposal by successfully transmitting phase-encoded single-photon states for quantum cryptography over 500 m of few-mode fiber.
arXiv Detail & Related papers (2021-03-08T19:01:58Z) - Observing quantum coherence from photons scattered in free-space [0.0]
We demonstrate a novel approach to transfer and recover quantum coherence from scattered non-line-of-sight photons.
The observed time-bin visibility for scattered photons remained at a high $95%$ over a wide scattering angle range of -45 degree to +45 degree.
We believe our method will instigate new lines for research and development on applying photon coherence from scattered signals to quantum sensing, imaging, and communication in free-space environments.
arXiv Detail & Related papers (2021-02-27T19:26:11Z) - Telecom-heralded entanglement between remote multimode solid-state
quantum memories [55.41644538483948]
Future quantum networks will enable the distribution of entanglement between distant locations and allow applications in quantum communication, quantum sensing and distributed quantum computation.
Here we report the demonstration of heralded entanglement between two spatially separated quantum nodes, where the entanglement is stored in multimode solid-state quantum memories.
We also show that the generated entanglement is robust against loss in the heralding path, and demonstrate temporally multiplexed operation, with 62 temporal modes.
arXiv Detail & Related papers (2021-01-13T14:31:54Z) - Hyperentanglement in structured quantum light [50.591267188664666]
Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protocols.
Here, we demonstrate a functional source of high-dimensional, noise-resilient hyperentangled states encoded in time-frequency and vector-vortex structured modes.
We generate highly entangled photon pairs at telecom wavelength that we characterise via two-photon interference and quantum state tomography, achieving near-unity visibilities and fidelities.
arXiv Detail & Related papers (2020-06-02T18:00:04Z) - Quantum metamaterial for nondestructive microwave photon counting [52.77024349608834]
We introduce a single-photon detector design operating in the microwave domain based on a weakly nonlinear metamaterial.
We show that the single-photon detection fidelity increases with the length of the metamaterial to approach one at experimentally realistic lengths.
In stark contrast to conventional photon detectors operating in the optical domain, the photon is not destroyed by the detection and the photon wavepacket is minimally disturbed.
arXiv Detail & Related papers (2020-05-13T18:00:03Z)
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.