Chip-to-chip quantum teleportation and multi-photon entanglement in silicon

Llewellyn, D.; Ding, Yunhong; Faruque, Imad I.; Paesani, Stefano; Bacco, Davide; Santagati, Raffaele; Qian, Ying; Li, Yan; Xiao, Yun‐Feng; Huber, Marcus; Malik, Mehul; Sinclair, Gary F.; Zhou, Xiaoqi; Rottwitt, Karsten; Brien, J. L. O; Rarity, John; Gong, Qihuang; Oxenløwe, Leif Katsuo; Wang, J.; Thompson, Mark G.

doi:10.1038/s41567-019-0727-x

Cited by 217 publications

(167 citation statements)

References 31 publications

Supporting

Mentioning

157

Contrasting

Unclassified

Order By: Relevance

“…Because some cryptography protocols use teleportation, applications to cryptography in multimode fibers could follow. Another application concerns communications in quantum computing [32].…”

Section: Discussionmentioning

confidence: 99%

Imaging Spatiotemporal Hong-Ou-Mandel Interference of Biphoton States of Extremely High Schmidt Number

et al. 2020

View full text Add to dashboard Cite

We report the experimental observation of a spatiotemporal Hong-Ou-Mandel (HOM) interference of biphoton states of extremely high Schmidt number. Two-photon interference of 1500 spatial modes and a total of more than 3 × 10 6 spatiotemporal modes is evidenced by measuring momentum spatial coincidences, without any prior selection of the photons in time and space coincidence, between the pixels of the far-field images of two strongly multimode spontaneous parametric down-conversion (SPDC) beams propagating through a HOM interferometer. The outgoing SPDC beams are recorded on two separate detector arrays operating in the photon-counting regime. The properties of HOM interference are investigated both in the time and space domains. We show that the two-photon interference exhibits temporal and two-dimensional spatial HOM dips with visibilities of 60% and widths in good agreement with the spatiotemporal coherence properties of the biphoton state. Moreover, we demonstrate that maxima of momentum spatial coincidences are evidenced within each image, in correspondence with these dips.

show abstract

Section: Discussionmentioning

confidence: 99%

Imaging Spatiotemporal Hong-Ou-Mandel Interference of Biphoton States of Extremely High Schmidt Number

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Implementations in other photonic and matter-based systems have since followed [4][5][6][7][8]. Recent developments include ground-to-satellite [9] and chip-to-chip [10] teleportation, quantum secret sharing [11], and teleportation in high dimensions [12]. The objective of quantum teleportation is the transfer of a quantum state between two parties, Alice and Bob, using classical communication, shared entanglement, and local measurements.…”

Section: Introductionmentioning

confidence: 99%

Quantum teleportation of single-electron states

et al. 2020

View full text Add to dashboard Cite

We consider a scheme for on-demand teleportation of a dual-rail electron qubit state, based on single-electron sources and detectors. The scheme has a maximal efficiency of 25%, which is limited both by the shared entangled state as well as the Bell-state measurement. We consider two experimental implementations, realizable with current technology. The first relies on surface acoustic waves, where all the ingredients are readily available. The second is based on Lorentzian voltage pulses in quantum Hall edge channels. As single-electron detection is not yet experimentally established in these systems, we consider a tomographic detection of teleportation using current correlators up to (and including) third order. For both implementations, we take into account environmental effects.

show abstract

“…Real-world applications require scaling up these demonstrations to 50 photon experiments in the near term [9], which will be unreasonably challenging due to the space and stability constraints of bulk optics. Integrated optics have been used to demonstrate larger and more sophisticated quantum photonic experiments [10], many of them specifically on a silicon photonics platform: arbitrary two quantum bit (qubit) processing [11], the first chip-to-chip quantum teleportation [12], and state-of-the-art multidimensional Bell inequalities [13]. Utilizing the fabrication technologies developed initially for microelectronics applications, silicon photonics have demonstrated the potential to realize these quantum technologies at a commercial scale using low-cost solutions, and with unparalleled fabrication precision and electronic integration [14,15].…”

mentioning

confidence: 99%

“…For scalability purposes, different sources have to be highly (>99%) indistinguishable with respect to each other [16]. The most common structures used in silicon photonics as sources are long waveguides and microresonators [11][12][13]; these structures are used to exploit a nonlinear optical process, spontaneous four-wave mixing (SFWM). In SFWM, pump pulses generate pairs of photons, signals, and idlers, as they propagate through waveguides or microresonators conserving energy and momentum.…”

mentioning

confidence: 99%

“…Spectral filtering has been used to increase the spectro-temporal purity and the indistinguishability of the waveguide sources at the cost of reduced heralding efficiency, or brightness of the sources [17,18]. In contrast, without any spectral filtering, conventional microring or micro-racetrack resonators (MRRs) are fundamentally bound to a high but maximum purity of 92% [19][20][21], and likewise similar values of indistinguishability [12].…”

mentioning

confidence: 99%

See 1 more Smart Citation

High spectro-temporal purity single-photons from silicon micro-racetrack resonators using a dual-pulse configuration

Burridge¹,

Faruque²,

Rarity³

et al. 2020

Opt. Lett.

Self Cite

View full text Add to dashboard Cite

Single-photons with high spectro-temporal purity are an essential resource for quantum photonic technologies. The highest reported purity up until now from a conventional silicon photonic device is 92% without any spectral filtering. We have experimentally generated and observed single-photons with 98.0 ± 0.3% spectro-temporal purity, an upper bound of the stimulated emission tomography, using a conventional micro-racetrack resonator and an engineered dual pump pulse. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

show abstract

Chip-to-chip quantum teleportation and multi-photon entanglement in silicon

Cited by 217 publications

References 31 publications

Imaging Spatiotemporal Hong-Ou-Mandel Interference of Biphoton States of Extremely High Schmidt Number

Imaging Spatiotemporal Hong-Ou-Mandel Interference of Biphoton States of Extremely High Schmidt Number

Quantum teleportation of single-electron states

High spectro-temporal purity single-photons from silicon micro-racetrack resonators using a dual-pulse configuration

Contact Info

Product

Resources

About