# KAIST Quantum device lab bootcamp
Purpose of this page is to make a complete list of **well-written** reading materials that all of our group members are encouraged to learn.

Assuming the reader is new to this field, the difficulty of the material of each paper is highlighted by color panels.

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## Experimental quantum photonics

### [Photonic quantum information processing: A concise review](https://aip.scitation.org/doi/10.1063/1.5115814)
* This article covers how linear optics quantum computing (LOQC) is approaching quantum computing hardwares.
* Best paper to understand what we are going to make in a **conceptual** levlel.
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### [Photonic quantum information processing: a review](https://doi.org/10.1088%2F1361-6633%2Faad5b2)
* This article covers broad range of quantum photonics work, including both quantum computer and communication.
* It is not limited to integrated photonics.
* Light-matter interaction platform such as atoms or quantum dots are less emphasized.

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### [Hybrid integrated quantum photonic circuits](http://www.nature.com/articles/s41566-020-0609-x)

* This article discusses the goal and strategy to build a complete (which means deterministical operation) quantum circuit by combining heterogeneous (different materials) platforms.
* It is a good read to learn currently existing quantum photonic platforms.

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### [Integrated photonic quantum technologies](https://www.nature.com/articles/s41566-019-0532-1)

* This article covers important integrated quantum photonics technology.
* Especially Box 1 has essential operational principle of quantum photonic circuits.

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## Theoretical quantum photonics

### [Linear optical quantum computing with photonic qubits](https://link.aps.org/doi/10.1103/RevModPhys.79.135)

* This is a serious review article written by theoretical physicists.
* It has all the essential explanations on how linear optical quantum computing can be performed.
* It is recommended for those who want to understand **WHY** we work on photonic quantum computation.
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## Integrated photonics engineering

### General integrated photonics

#### [Programmable photonic circuits](https://www.nature.com/articles/s41586-020-2764-0)

* This articles covers the basic principle of **programmable (tunable)** integrated photonic circuit with emphasis on various applications.
* This article has a collection of **complex** integrated photonic circuits and methods to build them.

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#### [Silicon Quantum Photonics](https://ieeexplore.ieee.org/document/7479523)

* It shows detailed information of hardware engineering for integrated quantum photonics.
* Note: when people say 'silicon photonics', it does not necessarily mean theh material is made of silicon. Typically, integrated 'nano' photonics, where waveguide dimensions are about a micrometer or below, are all referred to as silicon photonics.
* For example, silicon nitrde photonics platform such as [this work](http://www.nature.com/articles/s41567-018-0394-3) can be called silicon photonics.
* This paper most closely covers what **WE** are going to work on.

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#### [Silicon microring resonator](http://doi.wiley.com/10.1002/lpor.201100017)

* This article covers hardware aspects of silicon photonics.
* It does not cover anything **quantum**, however, our hardware will look like this.
* It is helpful for understanding how integrated photonic hardwares are made and analyzed.
* Author of this paper, Dr. Wim Bogaert's papers are in general recommended if you would like to see how **engineering** aspect of integrated photonics is developing.

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#### [Multimode silicon photonics](https://www.degruyter.com/view/journals/nanoph/8/2/article-p227.xml)

* It is a good overview article of multimode integrated photonics.
* Section 2.1 is relevant to intermodal photon pair generation.

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### Thin-film lithium niobate

#### [Integrated photonics on thin-film lithium inobate](https://www.osapublishing.org/aop/viewmedia.cfm?uri=aop-13-2-242&html=true)

* Summary of essential information on the development of integrated lithium niobate photonics
* Essential article for all lab members to read

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#### [Lithium Niobate on Insulator: An Emerging Platform for Integrated Quantum Photonics](https://onlinelibrary.wiley.com/doi/full/10.1002/adom.202100789)

* Review article on thin-film lithium niobate as quantum photonics platform
* Most useful article for our research

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### Textbooks

[Fundamentals of photonics (Saleh and Teich)](https://drive.google.com/open?id=1aGpC-xoohLXROUahvx5dcyN7t8yeiJWW&authuser=youngik%40qdlab.xyz&usp=drive_fs)

* This book includes everything about photonics.
* It is recommended to use as a 'dictionary' of anything related to photonics.
* Since it is a dictionary type textbook, material is not super thorough. But still it is good enough to learn essential physical principles.

##### Essential topics for our research
* waveguide theory: chapter 8 - 8.3

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[Fundamentals of photonics (Chrostowski and Hochberg)](https://drive.google.com/open?id=1a0DakTXw-2_o5B3ESK_1g7cmCuXeCDsV&authuser=youngik%40qdlab.xyz&usp=drive_fs)

* This book is written by photonics engineers who has deep experiences in every aspect of integrated photonics.
* Good materials to learn practical knowledge.

##### Essential topics for our research
* Chapter 5 and 12 are useful for experiment.
* Most of chapters.

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#### [Optical waveguide thoery (Love and Snyder)](https://drive.google.com/open?id=1a2oWISnlC_1AK0QqQUYQLg6_eIHSnO_q&authuser=youngik%40qdlab.xyz&usp=drive_fs)

* Classical bookd of photonics. It covers most of important subjects on guided optics.
* For rigorous derivation and interpretation of photonics based on coupled-mode anaysis, read this book.

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#### [Introduction to Modern optics (Fowles)](https://drive.google.com/open?id=1c30hbYXJNuiLvvZhfhyN0YSkreUbsbDA&authuser=youngik%40qdlab.xyz&usp=drive_fs)

* Old textbook of classical optics.
* Easy materials for understanding basic concepts such as Fresnel equations, Fabry-Perot interferometer, lasers and etc.

##### Essential topics for our research
* Fresnel equations: chapter 2
* Fabry-Perot interferometer: chapter 4

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## Single-photon sources

### [Invited Review Article: Single-photon sources and detectors](https://aip.scitation.org/doi/full/10.1063/1.3610677)

* Quantum photonic platform needs both single-photon sources and detectors.
* This article systematically categorizes these different approaches.
* Since it is published in 2011, it may miss many of new results over 2010s.

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### [Single-photon sources: Approaching the ideal through multiplexing (Meyer-Scott et al.)](http://aip.scitation.org/doi/10.1063/5.0003320)

* This is a review article that focuses on **single-photon sources based on nonlinear parametric process**.
* *Our group's 5-year goal* is to use integrated photonics and achieve a better performance reported here.
* Note: although this is a report on single-photon sources, exact same components will be used in photonic quantum computers.

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### [Parametric Down-Conversion (Christ et al.)](https://linkinghub.elsevier.com/retrieve/pii/B9780123876959000111)

* This book chapter is a useful resource to understand parametric photon pair generation in terms of quantum optics.
* Although it specificially discusses spontaneous parametric down-conversion (SPDC), core concepts such as joint spectral amplitude (JSA) and phase matching are applicable to spontaneous four-wave mixsing (SFWM) as well.
* This paper is moderately through in terms of theoretical treatment.

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## Quantum Optics

### [Photon Statistics, Measurements, and Measurements Tools](https://linkinghub.elsevier.com/retrieve/pii/B9780123876959000020)

* This book chapter offers a systematic but simple introduction of photons in the quantum regime.
* Although not as through as quantum optics textbooks, thanks to its brevity, it can be useful to beginners in the field.
* From the beginning to 2.2.4 is recommended to read. Reading the rest of the article is optional.
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### [Tailoring nonlinear processes for quantum optics with pulsed temporal-mode encodings (Ansari et al.)](https://www.osapublishing.org/abstract.cfm?URI=optica-5-5-534)

* This review article goes over the technical details of SPDC.
* It provides a practical knowledges for our research.
* Discussion on temporal mode is an optional read.

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### [Quantum Optics - An Introduction (Mark Fox)](https://drive.google.com/open?id=1_VlFqvLef1Nb67pkSjqfJy2Yo1_ehU1D&authuser=youngik%40qdlab.xyz&usp=drive_fs)

* This is an introductory quantum optics textbook.
* It is very useful to learn basic concepts in quantum optics.
* If you did not learn these words - number state, Fock state, coherent state, HBT(Hanbury,Brown,Twiss) measruement - read relevant chpaters of this textbook.

#### Essential topics for our research
* To understand overarching theme of the book and basic electrodynamics: read chapter 1 - 2
* To understand or review basic quantum mechanics: read chapter 3
* To study the basic of quantum optics used in quantum technologgy: reach chapter 5 - 8

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### [Atomic Physics (Christopher J. Foot)](https://drive.google.com/file/d/1aGNJ9Wl_rsgDZBzSCeSm0RcNmAqdD0Po/view?usp=sharing)

* This is an introductory AMO (Atomic, molecular and optical physics) textbook.
* Useful reference when we do AMO-related work, such as quantum emitters inside solids.

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### [Introductory Quantum Optics (Gerry and Knight)](https://drive.google.com/open?id=1_hGiWdPWbBCi7Ns0mqmknXbWcLjlRc1w&authuser=youngik%40qdlab.xyz&usp=drive_fs)

* This is an intermediate level quantum optics textbook that covers most of important concepts in our research.
* This is slightly more advanced textbook than Mark Fox's Quantum Optics textbook.

#### Essential topics for our research
* To understand how Maxwell's equation is used to derive field quantization: read chapter 2-2.4
* To understand quantum interference between two single photons: read chapter 5-6

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### [Very Nonlinear Quantum Optics (Quesada PhD Thesis)](https://drive.google.com/open?id=1bPIT1uskZMWW2E1MAT3EF9_ZDgk_PdkK&authuser=youngik%40qdlab.xyz&usp=drive_fs)

* This thesis details the derivation of photon pair generation in the language of quantum optics.
* It has more thorough description than Silberhorn's book chapter or review papers.
* Advisor of this thesis, Prof. John Sipe, is an expert in the field of quantum optics. We all should pay attention to his publications.

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### [Generation of Heralded Single Photons in Pure Quantum States (Mosely Phd Thesis)](https://drive.google.com/open?id=1bYLl89kA7JAJ_xIjBJPXsVe2ZVg5WXK_&authuser=youngik%40qdlab.xyz&usp=drive_fs)
* This thesis has an easy-to-read explanation of Hamiltonian derivation of SPDC.
* Especially chapter 2 and 3 are relevant to our research.

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## Quantum Computing

### [Introduction to Optical Quantum Information Processing (Kok and Lovett)](https://drive.google.com/open?id=1_avxEaYy53fr5gSwdqkmYrU_xH5JIRfp&authuser=youngik%40qdlab.xyz&usp=drive_fs)

* This textbook covers technical details on how quantum infomation can be processed using photons.
* It is a longer version of the [Kok's Review of Modern physics](https://journals.aps.org/rmp/abstract/10.1103/RevModPhys.79.135) in this page.

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### [Quantum Computation and Quantum Information (Nielsen and Chuang)](https://drive.google.com/open?id=1_blX9-xqYIUskopmHeJxpEtotKWEYE4l&authuser=youngik%40qdlab.xyz&usp=drive_fs)

* Bible textbook of quantum computing.
* Quantum mechanics written in quantum information point of view.
* Useful to learn important concepts such as entanglement, mixed states, density matrix.

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## Nonlinear optics

### [Nonlinear fiber optics (Agrawal)](https://drive.google.com/open?id=1_pXaNeP_jgejbTDIfYbPQeFC-XsFa7mc&authuser=youngik%40qdlab.xyz&usp=drive_fs)

* This is a standard nonlinear optics textbook that is written with an emphasis on fiber optics.
* Chapter 2-2.3.1 has a simple description of nonlinear optical process and its coefficients.

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### [Nonlinear optics (Boyd)](https://drive.google.com/open?id=1_z3wmEqjXyPVHxi_AWQZO5oWgytJCeTd&authuser=youngik%40qdlab.xyz&usp=drive_fs)

* It is one of standard textbooks in nonlinear optics field.
* Chapter 4-4.2 is useful to understand four-wave mixing.

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## Material science

### [Properties of materials: anisotropy, symmetry, structure (Newnham)](https://drive.google.com/open?id=1_ezvhJ317sCSWmUCttQkPPNQ5uXFRy16&authuser=youngik%40qdlab.xyz&usp=drive_fs)

* This is a great textbook that covers the fundamentals of material properties.
* For our research, it is recommended to read chapters on photoelasticity, piezoelectricity, dielectric constant, crystal optics and nonlinear optics.
* First few chapters, especially 2 and 5, are important for basic understanding of how the formulation works for materials.

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## Single photon detectors (superconducting nanowire single photon detector, SNSPD)

### [Superconducting Devices in Quantum Optics](http://link.springer.com/10.1007/978-3-319-24091-6)

* This book has essential information about single photon detectors.
* Chapter 1 and 4 are especially important for our work.

### [Detecting single infrared photons with 93% system efficiency(Marsili)](https://www.nature.com/articles/nphoton.2013.13)

* This is a research paper that covers all the essential ingridents of SNSPD.

### [Superconducting nanowire single-photon detectors with 98% system detection efficiency at 1550 nm](https://www.osapublishing.org/abstract.cfm?URI=optica-7-12-1649)

* This is state-of-the-art SNSPD performance.

### [Progress on large-scale superconducting nanowire single-photon detectors(Steinhauer)](https://aip.scitation.org/doi/full/10.1063/5.0044057)

* Recent (2021) review paper of SNSPD production.

### [Integrated-Photonic Characterization of Single-Photon Detectors for Use in Neuromorphic Synapses(Buckley)](https://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.14.054008)

* This work demonstrates the small scale waveguide and SNSPD integration.
* SNSPD material used in this work is not what we want to use for quantum photonics, but the overall configuration is **precisely** what we pursue.

### [Waveguide-integrated superconducting nanowire single-photon detectors](https://www.degruyter.com/document/doi/10.1515/nanoph-2018-0059/html)

## Quantum repeaters

### [Quantum repeaters: From quantum networks to the quantum internet](https://arxiv.org/abs/2212.10820)
* THE very best review paper summarizes all the important aspects of quantum repeaters as of 2023.
* Parts in the beginning are in general useful to understand simple quantum information processing.

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### [Material platforms for spin-based photonic quantum technologies](https://www.nature.com/articles/s41578-018-0008-9)
* This article covers the recent devlopement of quantum emitteres in the context of quantum repeater.
* Our lab's primary topic is silicon vacancy color center in diamond.

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