Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Demonstration of Deterministic Photon-Photon Interactions with a Single Atom

Serge Rosenblum, Itay Shomroni, Yulia Lovsky, Orel Bechler, Gabriel Guendelman, Barak Dayan

Published Jan 1, 2015• 0 citations
Publisher

Abstract

We demonstrate all-optical deterministic photon-atom and photon-photon interactions with a single Rb atom coupled to high-Q fiber-coupled microresonator. This scheme enables all-optical photon routing, passive quantum memory and quantum gates activated solely by single photons.
DOI
10.1364/cleo_qels.2015.fm1e.1

Related papers

Demonstration of Deterministic and Passive Photon-Atom SWAP Quantum Gate

Adrien Borne, Orel Bechler, Serge Rosenblum +12 more

Using single-photon Raman interaction, we demonstrate a deterministic and passive SWAP gate and quantum memory between the states of a single photon and a single 87Rb atom coupled to high-Q microresonator.

Quantum Information and Measurement (QIM)•Jan 1, 2017•2 citations

Demonstration of Deterministic Photon-Photon Interactions with a Single Atom

S. Rosenblum, Itay Shomroni, Orel Bechler +3 more

We demonstrate deterministic photon-atom and photon-photon interactions with a single atom coupled to a high-Q fiber-coupled microresonator. Based on Deterministic One Photon Raman Interaction (DOPRI), this scheme can form the basis for all-optical quantum information processing.

Nonlinear Optics•Jan 1, 2015•0 citations

All-optical routing of single photons by a one-atom switch controlled by a single photon

Itay Shomroni, Serge Rosenblum, Yulia Lovsky +3 more

The prospect of quantum networks, in which quantum information is carried by single photons in photonic circuits, has long been the driving force behind the effort to achieve all-optical routing of single photons. We realized a single-photon-activated switch capable of routing a photon from any of its two inputs to any of its two outputs. Our device is based on a single atom coupled to a fiber-coupled, chip-based microresonator. A single reflected control photon toggles the switch from high reflection (R ~ 65%) to high transmission (T ~ 90%), with an average of ~1.5 control photons per switching event (~3, including linear losses). No additional control fields are required. The control and target photons are both in-fiber and practically identical, making this scheme compatible with scalable architectures for quantum information processing.

arXiv:1405.0937•Science•Jul 11, 2014•476 citations

Demonstration of a passive photon-atom swap gate

Orel Bechler, Adrien Borne, Serge Rosenblum +12 more

Deterministic quantum interactions between single photons and single quantum emitters are a vital building block towards the distribution of quantum information between remote systems. Deterministic photon-atom state transfer has been demonstrated by using protocols that include active feedback or synchronized control pulses. Here we demonstrate a completely passive swap gate between the states of a single photon and a single atom. The underlying mechanism is single-photon Raman interaction (SPRINT) - an interference-based effect in which a photonic qubit deterministically controls the state of a material qubit encoded in the two ground states of a Λ system, and vice versa. Using a nanofiber-coupled microsphere resonator coupled to single Rb atoms we swap a photonic qubit into the atom and back, demonstrating nonclassical fidelities in both directions. Requiring no control fields or feedback protocol, the gate takes place automatically at the timescale of the atom's cavity- enhanced spontaneous emission time. Applicable to any waveguide-coupled Λ system, this scheme provides a versatile building block for the modular scaling up of quantum information processing systems.

arXiv:1711.10974•Nov 29, 2017•0 citations

Deterministic photon-atom and photon-photon interactions based on single-photon Raman interaction

Orel Bechler, Serge Rosenblum, Itay Shomroni +3 more

We demonstrate a passive scheme for deterministic interactions between a single photon and a single atom. Relying on single-photon Raman interaction (SPRINT), this control-fields free scheme swaps a flying qubit, encoded in the two possible input modes of a photon, with a stationary qubit, encoded in the two ground states of the atom, and can be also harnessed to perform universal quantum gates. Using SPRINT we experimentally demonstrated all-optical switching of single photons by single photons, and deterministic extraction of a single photon from an optical pulse. Applicable to any atom-like Lambda system, SPRINT provides a versatile building block for scalable quantum networks based on completely passive nodes interconnected and activated solely by single photons.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Mar 8, 2016•0 citations

Optical Cavity Quantum Electrodynamics: A Toolbox for Deterministic Quantum Information Science with Stationary Atoms and Flying Photons

Gerhard Rempe, M. Hijlkema, Axel Kuhn +4 more

We review recent experiments with single atoms strongly coupled to high-finesse optical cavities, highlighting deterministic schemes for the production of polarized single photons, the generation of an entanglement between a stationary atom and a flying photon, the mapping of a quantum state from an atom onto a photon, the emission of an entangled photon pair, and the generation of an up-to-half-a-minute long stream of single photons from one-and-the-same atom.

The Rochester Conferences on Coherence and Quantum Optics and the Quantum Information and Measurement meeting•Jan 1, 2007•16 citations
The prospect of quantum networks, in which quantum information is carried by single photons in photonic circuits, has long been the driving force behind the effort to achieve all-optical routing of single photons. We realized a single-photon-activated switch capable of routing a photon from any of its two inputs to any of its two outputs. Our device is based on a single atom coupled to a fiber-coupled, chip-based microresonator. A single reflected control photon toggles the switch from high reflection (R ~ 65%) to high transmission (T ~ 90%), with an average of ~1.5 control photons per switching event (~3, including linear losses). No additional control fields are required. The control and target photons are both in-fiber and practically identical, making this scheme compatible with scalable architectures for quantum information processing.
Deterministic quantum interactions between single photons and single quantum emitters are a vital building block towards the distribution of quantum information between remote systems. Deterministic photon-atom state transfer has been demonstrated by using protocols that include active feedback or synchronized control pulses. Here we demonstrate a completely passive swap gate between the states of a single photon and a single atom. The underlying mechanism is single-photon Raman interaction (SPRINT) - an interference-based effect in which a photonic qubit deterministically controls the state of a material qubit encoded in the two ground states of a Λ system, and vice versa. Using a nanofiber-coupled microsphere resonator coupled to single Rb atoms we swap a photonic qubit into the atom and back, demonstrating nonclassical fidelities in both directions. Requiring no control fields or feedback protocol, the gate takes place automatically at the timescale of the atom's cavity- enhanced spontaneous emission time. Applicable to any waveguide-coupled Λ system, this scheme provides a versatile building block for the modular scaling up of quantum information processing systems.
We demonstrate a passive scheme for deterministic interactions between a single photon and a single atom. Relying on single-photon Raman interaction (SPRINT), this control-fields free scheme swaps a flying qubit, encoded in the two possible input modes of a photon, with a stationary qubit, encoded in the two ground states of the atom, and can be also harnessed to perform universal quantum gates. Using SPRINT we experimentally demonstrated all-optical switching of single photons by single photons, and deterministic extraction of a single photon from an optical pulse. Applicable to any atom-like Lambda system, SPRINT provides a versatile building block for scalable quantum networks based on completely passive nodes interconnected and activated solely by single photons.