Integration of quantum dots with lithium niobate photonics

Aghaeimeibodi, Shahriar; Desiatov, Boris; Kim, Je‐Hyung; Lee, Chang-Min; Buyukkaya, Mustafa Atabey; Karaşahin, Aziz; Richardson, Christopher J. K.; Leavitt, Richard P.; Lončar, Marko; Waks, Edo

doi:10.1063/1.5054865

Cited by 82 publications

(58 citation statements)

References 40 publications

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“…Lithium niobate, a material that is already well established in classical integrated photonics, is an efficient and flexible platform for photon sources and fast switchable electro-optical components operating at the GHz rates. Both ion-indiffused and high-indexcontrast etched waveguides are being developed and employed 149,165,[189][190][191][192] . Silicon-based optical chips offer high component density, low loss, the ability or potential to integrate every necessary component, and compatibility with existing foundry processes 193 .…”

Section: Integrated Quantum Photonicsmentioning

confidence: 99%

Photonic quantum information processing: A concise review

Slussarenko

Pryde

2019

Applied Physics Reviews

484

308

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Photons have been a flagship system for studying quantum mechanics, advancing quantum information science, and developing quantum technologies. Quantum entanglement, teleportation, quantum key distribution and early quantum computing demonstrations were pioneered in this technology because photons represent a naturally mobile and low-noise system with quantum-limited detection readily available. The quantum states of individual photons can be manipulated with very high precision using interferometry, an experimental staple that has been under continuous development since the 19th century. The complexity of photonic quantum computing device and protocol realizations has raced ahead as both underlying technologies and theoretical schemes have continued to develop. Today, photonic quantum computing represents an exciting path to medium-and large-scale processing. It promises to out aside its reputation for requiring excessive resource overheads due to inefficient two-qubit gates. Instead, the ability to generate large numbers of photons-and the development of integrated platforms, improved sources and detectors, novel noise-tolerant theoretical approaches, and more-have solidified it as a leading contender for both quantum information processing and quantum networking. Our concise review provides a flyover of some key aspects of the field, with a focus on experiment. Apart from being a short and accessible introduction, its many references to in-depth articles and longer specialist reviews serve as a launching point for deeper study of the field. CONTENTS arXiv:1907.06331v1 [quant-ph]

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Section: Integrated Quantum Photonicsmentioning

confidence: 99%

Photonic quantum information processing: A concise review

Slussarenko

Pryde

2019

Applied Physics Reviews

484

308

View full text Add to dashboard Cite

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“…In experiments, an on‐chip beam splitter was used to measure the second‐order correlation function revealing a g (2) (0) value of 0.33 and 0.25 for cw‐ and pulsed excitation, respectively. The same method and experiments were also shown recently combining InAs/InP QDs with thin‐film lithium niobate photonics revealing the versatility of this pick‐and place techniques …”

Section: Hybrid Quantum Photonic Circuitsmentioning

confidence: 56%

Semiconductor Quantum Dots for Integrated Quantum Photonics

et al. 2019

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Quantum mechanics promises to have a strong impact on many aspects of research and technology, improving classical analogues via purely quantum effects. A large variety of tasks are currently under investigation, for example, the implementation of quantum computing, sensing, metrology, and communication. From a general perspective, in a similar way as classical computing benefited by the reduction of the device footprint, enabling the realization of highly complex chips, a range of quantum applications will sensibly improve thanks to the successful realization of on-chip quantum photonics. Conversely to bulky table-top experiments, it would be very advantageous to transfer all required functionalities on the same quantum photonic chip. The key elements for quantum photonic circuits are on-demand nonclassical light sources, a versatile photonic logic, the ability to store quantum information, and highly efficient detectors, directly integrated on-chip. Among several systems capable of the efficient generation of singleand indistinguishable photons, quantum dots are rapidly establishing as one of the most appealing candidates. This paper reviews the recent progress in the on-chip integration of quantum-dot-based nonclassical light sources as well as in the development of the main building blocks, either integrated monolithically or hybridly on a compact and scalable platform. IntroductionFrom the foundation of quantum mechanics in the early 20th century to explain fundamental physical observations, over the development of transistors and lasers in the 1950s and 1960s, the second quantum revolution is now in full swing. The driving force behind this continuing "quantum footrace" are quantum mechanical effects based on superposition and entanglement that can lead to profound changes. Especially in the field of quantum information science, dramatic improvements are expected in terms of increased computational speed and communication security if compared with classical counterparts.Talking about quantum supremacy, two problems-Grover's algorithm for the efficient search in large unsorted databases and Shor's algorithm for the prime factorization of large integers-are frequently mentioned. [1][2][3] Grover's quantum search algorithm can find an element of a search space M in O( √ M) operations compared to the best known classical algorithms approximately requiring O(M) steps. [4] Shor's algorithm can prime factorize large integers with N bits in polynomial speed compared to the exponential scaling of classical algorithms. Currently, several cryptography schemes in electronic communication systems rely on the difficulty of prime factorization as its security method. Consequently, a quantum computer could break the cryptographic keys quickly by calculating or searching exhaustively all key possibilities, which may allow an eavesdropper to intercept the communication channel. [5] However, quantum key distribution schemes can be alternatively used, which are based on the secure exchange of a cryptographic key between remote...

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“…We fabricated our hybrid device based on a pick-and-place approach [15,29] to integrate the InP nanobeam and the silicon add-drop filter, which were prepared individually on separate chips. First, we patterned the nanobeam using electron beam lithography on a substrate containing 280 nm thick InP on a 2 μm thick AlInAs sacrificial layer.…”

Section: Device Fabrication and Measurement Methodsmentioning

confidence: 99%

Silicon photonic add-drop filter for quantum emitters

Aghaeimeibodi¹,

Kim²,

Lee³

et al. 2019

Opt. Express

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Integration of single-photon sources and detectors to silicon-based photonics opens the possibility of complex circuits for quantum information processing. In this work, we demonstrate integration of quantum dots with a silicon photonic add-drop filter for on-chip filtering and routing of telecom single photons. A silicon microdisk resonator acts as a narrow filter that transfers the quantum dot emission and filters the background over a wide wavelength range. Moreover, by tuning the quantum dot emission wavelength over the resonance of the microdisk we can control the transmission of the emitted single photons to the drop and through channels of the add-drop filter. This result is a step toward the on-chip control of single photons using silicon photonics for applications in quantum information processing, such as linear optical quantum computation and boson sampling.

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Integration of quantum dots with lithium niobate photonics

Cited by 82 publications

References 40 publications

Photonic quantum information processing: A concise review

Photonic quantum information processing: A concise review

Semiconductor Quantum Dots for Integrated Quantum Photonics

Silicon photonic add-drop filter for quantum emitters

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