Circular photonic crystal grating design for charge-tunable quantum light sources in the telecom C-band

arXiv (Cornell University), Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Efficient generation of entangled photon pairs at telecom wavelengths is a key ingredient for long-range quantum networks. While embedding semiconductor dots into hybrid circular Bragg gratings has proven effective, it conflicts with $p$-$i$-$n$ diode heterostructures which offer superior coherence. We propose and analyze photonic crystal gratings, incorporating air holes to facilitate charge carrier transport without compromising optical properties. Through numerical simulations, broad cavity mode Purcell factor 23 enhancing both exciton biexciton transitions, exceptional collection efficiency 92.4% an objective aperture 0.7 are achieved. Furthermore, our design demonstrates direct coupling over 90% single-mode fiber the entire C-band. The grating thereby emerges as promising solution efficient highly coherent, polarization-entangled pairs.

Язык: Английский

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Generation of indistinguishable photons with semiconductor quantum dots

Elsevier eBooks, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Язык: Английский

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Networking 3 K Two-Qubit Logic Gate Quantum Processors to Approach 1 Billion Logic Gate Performance

Electronics, Год журнала: 2024, Номер 13(23), С. 4604 - 4604

Опубликована: Ноя. 22, 2024

Outlined is a proposal designed to culminate in the foundry fabrication of arrays singly addressable quantum dot sources deterministically emitting single pairs energy-time entangled photons at C-band wavelengths, each pair having negligible spin-orbit fine structure splitting, being channeled into mode pig-tail optical fibers. Entangled carry state information among distributed servers via I/O ports two functions: unconditionally secure distribution decryption keys decrypt publicly distributed, encrypted classical bit streams as input generate corresponding qubit excitations and convert stream nondemolition measurements states stream. are key steps necessary fabricate on-demand photon pairs; principles (1) isolated dots, (2) generation localized sub-surface shear strain semiconductor stack, (3) cryogenic anvil cell, (4) channeling single-mode fibers, (5) over fiber network, (6) resonant excitation Josephson tunnel junction qubits from bits, (7) conversion bit.

Язык: Английский

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Molekulyarno-puchkovaya epitaksiya metamorfnykh geterostruktur s kvantovymi tochkami InAs/InGaAs, izluchayushchimi v telekommunikatsionnom diapazone dlin voln

Письма в Журнал экспериментальной и теоретической физики, Год журнала: 2024, Номер 120(9-10), С. 694 - 700

Опубликована: Дек. 1, 2024

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Influence of Local Droplet Etching Modes on the Transformation of Nanoholes Formed by Focused Ion Beams on a GaAs(111) Surface

Nanobiotechnology Reports, Год журнала: 2024, Номер 19(S1), С. S37 - S44

Опубликована: Дек. 1, 2024

Язык: Английский

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