Questions tagged [resource-request]
For questions that involve a request for resources to learn anything related to quantum computing or quantum information.
283
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Programming quantum computers for non-physics majors
I come from a non-physics background and I am very much interested in pursuing Quantum Computing - especially how to program them. Any guidance on how to get started will be very helpful.
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Currently, what are the best structured courses available online on quantum computing?
As we make inroads into Machine Learning, there seem to be plenty of respectable courses available online via Coursera, edX, etc. on the topic. As quantum computing is still in its infancy, not to ...
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5
answers
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Introductory material for quantum machine learning
In the past few days, I have been trying to collect material (mostly research papers) related to Quantum machine learning and its applications, for a summer project. Here are a few which I found ...
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Are there any organised resources available from where I can begin my quantum computing studies?
I am a computer science student and am currently searching for resources from where I can learn about quantum computers, quantum computing models, their working principles, their gates and some simple ...
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Can the Bloch sphere be generalized to two qubits?
The Bloch sphere is a nice visualization of single qubit states. Mathematically, it can be generalized to any number of qubits by means of a high-dimensional hypersphere. But such things are not easy ...
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25
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1
answer
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How to understand the Haar measure from a quantum information perspective?
I found it a little difficult to understand it using Wikipedia and some mathematical documents. How to understand the Haar measure from a quantum information theory perspective? Are there any ...
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1
answer
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Is there a list of accessible open problems in quantum computing from a theoretical computer science perspective?
(Classical) theoretical computer science (TCS) has a number of outstanding open problems that can easily be instantiated in a manner that is accessible to a wider general public.
For example, ...
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11
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Is my background sufficient to start quantum computing?
I am a first-year undergraduate electrical engineering student. I want to study quantum computing and quantum AI in the future and also possibly work on building quantum computers.
I have finished ...
17
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6
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Tools for creating quantum circuit diagrams
What tools exist for creating quantum circuit diagrams and exporting them as images? Preferably one which runs in Windows, or even better one which runs in the web browser.
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Is quantum computing mature enough for a computer scientist with no physics background?
Sligthly related to this question, but not the same.
Traditional computer science requires no physics knowledge for a computer scientist to be able to research and make progress in the field. Of ...
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What is a list of research journals publishing quantum computing articles?
Can anyone give me a list of different research journals that has quantum computing articles that I can use.
17
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Does a complete list of open quantum software projects exist?
An answer to
Is there any source which tabulates quantum computing algorithms for simulating physical systems? mentions the Quantum Algorithm Zoo, a list of quantum algorithms. Several answers to ...
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1
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Reference that explains how to read 3d topological diagrams for surface code computations
I like making diagrams to describe computations. For the surface code, an excellent tool is 3d topological diagrams. Here is an example diagram (made by me in SketchUp):
The basic idea is that white ...
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15
votes
2
answers
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Graphical Calculus for Quantum Circuits
So far I have read a little bit about zx-calculus & y-calculus.
From Reversible Computation:
The zx-calculus is a graphical language for describing quantum systems.
The zx-calculus is an ...
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15
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2
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State of the art gate speeds and decoherence times
I am interested in the state of the art gate speeds and decoherence times for the qubit types I know are being pursued by companies presently:
superconducting qubits,
ion trap qubits,
photonic qubits....
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5
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Is there any online Bloch sphere simulator?
While writing this answer I realized it would be really helpful if I could show the OP a video or .gif of how qubit states in Bloch spheres transform under certain unitary operations. I googled up a ...
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Does a study guide exist that starts from a "purely CS background" and advances towards "making a new quantum programming language"?
I am from a computer science background and I find it difficult to decide on the resources I should focus on while learning quantum computing, since there is so much to read/watch. My ultimate goal is ...
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13
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2
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Using a fractional number of classical bits within quantum teleportation
Recently, I heard that there can be transfer of rational classical bits (for example 1.5 cbits) from one party to another via quantum teleportation. In the Standard Teleportation Protocol, 2 classical ...
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5
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Advances on imperfect quantum copying
It is known by the no-cloning theorem that constructing a machine that is able to clone an arbitrary quantum state is impossible. However, if the copying is assumed not to be perfect, then universal ...
12
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2
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Where do we put error correction code in quantum circuit?
First of all : I am a beginner in quantum computing.
I would like to have a resource (or an answer if it is not complicated) explaining where we put the error correction codes in a quantum circuit.
...
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Resources for quantum algorithm basics
I have just started to learn about quantum computing, and I know a little bit about qubits. What is a resource where I can learn a basic quantum algorithm and the concepts behind how it works?
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Number of Qubits Required for Simulation of Caffeine and Penicillin Molecules
I recently read this report from BCG, which stated:
For scientists trying to design a compound that will attach itself to,
and modify, a target disease pathway, the critical first step is to
...
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11
votes
2
answers
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Review paper on depth, qubits and $T$ gates number on Clifford+T decomposition for various "typical" algorithms
My question
I am looking for some review paper, or a list of different papers providing concrete numbers about the depth, number of qubits and number of $T$ gates required on the Clifford+T basis for ...
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3
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How to quickly calculate the custom U3 gate parameters $\theta, \phi$ and $\lambda$ for any unitary?
In IBM Qiskit and Quantum Experience, the custom U3 gate is defined as
$$
U(\theta, \phi, \lambda) =
\begin{pmatrix}
\cos\left(\frac{\theta}{2}\right) & -e^{...
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10
votes
2
answers
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What real quantum computers are available for students to use?
I am aware that IBM, Rigetti, and Google have built some small-scale devices. Which of them are available for access by an undergraduate student? For how long? With how many qubits?
10
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2
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Good introductory material on quantum computational complexity classes
I wish to learn more about computational complexity classes in the context of quantum computing.
The medium is not so important; it could be a book, online lecture notes or the like. What matters ...
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What are useful resources about the geometric of qutrits and its relation with Gell-Mann matrices?
I need some useful sources about the geometry of qutrit. Specifically related to the Gell-Mann matrix representation.
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1
answer
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What are the basics needed to learn quantum computing?
I was very inspired by Michio Kaku's explanation on the possibilities of quantum computing and also listening to Talia Gershon's talk on it.
As I come from a business & analytics background, ...
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9
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6
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Resources to study quantum algorithms and quantum complexity
I have a computer science background, and I'm interested in studying 'quantum algorithms' and anything that is related like 'quantum complexity'.
I would like to have all important resources that is ...
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3
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Do any educational quantum computing toys or devices exist?
Question inspired by this article from IEEE Spectrum on blocks containing different polarization filters for use in classrooms, and my previous question on representing the three-polarizing-filter ...
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9
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3
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Generalization for $n$ quantum teleportations
In Breaking Down the Quantum Swap, it is stated:
Thanks to the CNOT, we can implement a xor-swap on a quantum computer. All we need to do is chain three CNOTs back and forth.
In a comment to a ...
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1
answer
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Is there any source which tabulates quantum computing algorithms for simulating physical systems?
I was wondering if there is a source (online or review article) which tabulates recent algorithms, and their complexities, used in simulating various physical systems. Something along the lines of:
...
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9
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3
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A sample quantum algorithm, useful for demonstrating languages
I'm looking for a quantum algorithm which I can use to demonstrate the syntax of different quantum-languages. My question is similar to this, however, for me, "good" means:
What it does could be ...
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9
votes
1
answer
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Why does representation theory often arise in the context of quantum algorithms for the hidden subgroup problem?
I noticed that approaches for finding quantum algorithms the hidden subgroup problem for both Abelian groups ($(\Bbb Z_n\times \Bbb Z_n, +)$, $(\Bbb R, +)$, etc.) and non-Abelian finite groups like ...
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8
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Resources for Quantum Communication Complexity
I recently came to know about this interesting topic of "communication complexity". In simple words, Wikipedia defines it as:
In theoretical computer science, communication complexity studies the
...
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8
votes
1
answer
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Transversal logical gate for Stabilizer (or at least Steane code)
I know that for Steane code, we can implement transversally some gates like cNOT, Hadamard and Pauli.
What I am looking for is a resource in which it is explained why implementing those gate give rise ...
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1
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What good references would you recommend to understand the (continuous-variable) CV model of computation?
If you have good references about the CV model that are understandable from a computer science background, that would be great. If they include numerical examples, that would even be better.
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Non-layperson explanation of why a qubit is more useful than a bit?
I have a computer science and mathematics degree and am trying to wrap my head around quantum computing and it just doesn't seem to make sense from the very beginning. I think the problem is the ...
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2
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Practical Implementations of QECCs in IBM Q Experience
I am learning how to program the IBM Q Experience quantum computers in order to learn more about how does it work and in order to perform some experiments in it. By doing so I was wondering what are ...
8
votes
1
answer
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Quantum chemistry: references
I have heard about Quantum chemistry as one of the main applications of quantum computers. However, I have not found concrete related articles with circuit-implementations for these applications.
...
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8
votes
1
answer
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What is the definition of Bell state on a n-qubit system?
Question 1: The bell state for a 2-qubit system has been defined in Neilsen and Chuang's book as the set of maximally entangled states spanned by $\{|00\rangle + |11\rangle, |00\rangle - |11\rangle, |...
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Resources for quantum biology
Are there any books, courses, tutorials, etc. for studying quantum biology?
Preferably they provide some introduction/primer on the relevant quantum aspects of the quantum biological systems being ...
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0
answers
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Definition of a NISQ device with respect to qubit counts and error rates
How do we define whether a device is a noisy intermediate-scale quantum (NISQ) device with respect to number of qubits and their error rates? Does it make sense to do this? I believe I once saw a ...
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6
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What would be an informative introduction to quantum computing software?
I am new to Stack Exchange and am working on a quantum learning platform for minority youth groups (LGBTQ, low-income, at risk, etc).
In the question below they are looking for courses on the subject,...
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4
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Are there Bell-like violations that can be observed without collecting statistics?
Observing the violation of Bell inequalities, be it in their original formulation, or in the nowadays more commonly used CHSH formulation, involves computing averages of specific experimentally ...
glS♦
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1
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List of problems that can be reduced to finding the ground state of a Hamiltonian
I'm doing some reading into Variational Quantum Eigensolvers (VQEs), Quantum Approximate Optimization Algorithms (QAOAs), and other similar algorithms.
I know that the point is to find the ground ...
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What resources are available for learning QCL?
I'm struggling to find much about the language QCL, rather than about quantum computing itself.
Is there anything out there like that? It doesn't have to be free.
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1
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Good references to learn magic state distillation for fault tolerance
I need to learn magic state distillation procedure and their application to fault-tolerance.
One of the original paper on this subject is the following: https://arxiv.org/pdf/quant-ph/0403025.pdf
I am ...
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1
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Looking for papers that are pessimistic about the feasibility of a quantum computer
I'm actually searching two types of documents (could be the same):
1) A synthesis about all the main gap/problems that make the physical realisation of a quantum computer actually infeasible.
2) ...
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7
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Publicly available samples for quantum circuits and/or simulators
With Yosi Rinott and Tomer Shoham we studied various statistical aspects of samples coming from NISQ computers.
My question is about available data consisting of samples from NISQ computers
We would ...
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