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Questions tagged [resource-request]

Use this tag to mark questions that involve a request for resources to learn about Quantum Computing or anything related to that.

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1answer
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Are there emulators for quantum networks?

Inspired by the question Are there emulators for quantum computers?, I'm curious to know if it's possible to emulate a quantum network on a classic computer. Additionally, is it possible to emulate a ...
3
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2answers
64 views

Time-bin encoding qudits

Time-bin encoding is a technique used in Quantum information science to encode a qubit of information on a photon. Wikipedia Is there a generalization for $n$-th level qudits?
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0answers
117 views

Eigenvalues of CPT operator

Suppose we define an operator CPT that carries out the CPT transformation: $$\text{CPT}|\Psi\rangle = A|\Psi\rangle$$ where A is just a constant. Or put another way, the states of our theory are ...
2
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2answers
85 views

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 ...
2
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0answers
36 views

Photonic XOR Games

I am particularly interested in XOR Games & was wondering if any work has been done in the field of photonic (optical) computing regarding them.
2
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0answers
42 views

Pointer to related research (paper)

Recently, I was reading a paper (arXiv:1804.03719 [cs.ET]), which had the following quote (the most relevant part has been bolded), Quantum algorithms are often grouped into number-theory-based, ...
2
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1answer
70 views

List of known circuits and their expected output

I've written an API which takes in a circuit scaffold, according to some specifications, and outputs the results of simulating the circuit. The circuit constraints are that the measurements are ...
5
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2answers
96 views

Resources on hybrid quantum-classical algorithms applied to combinatorial optimization problems

I am doing a thesis on "Metaheuristics and Quantum Computing", and was wondering if anyone could recommend some papers/pages to read talking about hybrid quantum/classical computing. (My idea is to ...
11
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5answers
1k views

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 ...
10
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2answers
684 views

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. ...
7
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5answers
402 views

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.
4
votes
1answer
92 views

In which paper was the CHSH game first presented?

The CHSH inequality was presented in the paper Proposed Experiment to Test Local Hidden-Variable Theories published in 1969 by J.F. Clauser, M.A. Horne, A. Shimony, and R.A. Holt. I'm interested in ...
8
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3answers
82 views

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 ...
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2answers
109 views

What are Grassmann-Plucker relations?

In Duality, matroids, qubits, twistors and surreal numbers (recently submitted!) they show that via the Grassmann-Plucker relations, the various apparent unrelated concepts, such as duality, ...
1
vote
1answer
77 views

Resources to keep a track on open Ph.D. positions in specific sub-fields/topics of quantum computing

I was wondering where to look for open Ph.D. positions for specific sub-fields/topics of quantum computing like error correction, optimization, quantum chemistry, etc. It is preferable if the offers/...
7
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2answers
121 views

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 ...
4
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1answer
123 views

Introductory resources for learning about quantum Hamiltonians

I am seeking introductory resources which will enable me to answer these questions (textbooks, lecture series, etc.): Given a simple quantum system, how do I derive its Hamiltonian? Given a ...
4
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1answer
21 views

Experimental Realization of Superactivation of Quantum Capacity

The superactivation of quantum capacity is an effect that some quantum channels present such that is two of those channels with zero capacity are combined, a non-zero channel capacity can be achieved ...
8
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2answers
139 views

Geometry of qutrit and Gell-Mann matrices

I need some useful sources about the geometry of qutrit. Specifically related to the Gell-Mann matrix representation.
4
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2answers
60 views

EA-Turbo simulation package

I am working with the quantum turbo codes presented in this paper by Wilde, Hsieh and Babar, and it is claimed that a package to simulate such codes is available at ea-turbo. However, the hyperlink to ...
4
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1answer
57 views

Quantum Computing Research Papers, on puzzles or game theory

Are there any research papers focused on implementing a game/puzzle or game theory in Quantum Computing.
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3answers
107 views

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 ...
7
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1answer
85 views

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.
4
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0answers
42 views

Photon Entanglement using SPDC

Are there any good references where from I can learn about photon entanglement using spontaneous parametric down-conversion (SPDC)?
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0answers
88 views

What are Tensor Networks and which is the relationship they have with quantum computing?

I have been active in this community a while and I repeatedly see questions and answers referring to the so-called Tensor Networks. That makes me wonder what are those elements are and what the ...
9
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2answers
143 views

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....
4
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4answers
229 views

How to re-create the following circuit image?

What would be the best way to re-create the following image of the HHL quantum circuit without compromising on image quality (the image is from this review paper)? Using qasm2circ I can create the ...
5
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2answers
173 views

What exactly are “quantum rotors”?

The Wikipedia entry on the subject is rather short. I am also curious about generalizations of quantum rotors in n-dimensions. An introductory explanation with at least one resource for further ...
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0answers
52 views

Quantum Belief Propagation decoding

I have been reading about a family of quantum error correction codes called Quantum Turbo Codes, which are the quantum analog of the well-known classical Turbo codes. This codes were introduced in ...
9
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3answers
168 views

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 ...
3
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2answers
63 views

Combining Different Qunits

Has any work been done on quantum systems which use a combination of types of qunits (eg. using qubits & qutrits simultaneously)? If work has been done, what kind of work has been done? (eg. in ...
6
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1answer
75 views

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 ...
8
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2answers
105 views

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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0answers
44 views

Any tips on where to start learning quantum computing? [duplicate]

I am very interested in this field right now, due to the quantum advantage and would like some helpful nudges in the right direction i.e. where should I start from. P.S: I have some background in ...
4
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1answer
68 views

topological error correction concepts

Reading about quantum topological error correction I’ve found some information, but I don’t have already clear the link with the topological concept (trivial and not trivial paths, how they are ...
7
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2answers
82 views

What are reliable references on analytical and/or numerical studies of threshold theorems under faulty quantum error correction?

By "faulty", I mean that you can have errors on the ancilla qubits, you can have faulty syndrome extraction, etc.
4
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2answers
116 views

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 ...
5
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5answers
248 views

What would be an informative introduction to Quantum?

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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3answers
4k views

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 ...
2
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1answer
68 views

Phononic Quantum Computing

Google returns "About 1 results" for Quantum Computing with Sound. The sole result links to an article entitled "Physicists have designed the building blocks of quantum computer that works using ...
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5answers
479 views

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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2answers
167 views

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 ...
4
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1answer
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What are some of the interesting problems whose solutions have been proposed using quantum neural networks?

I know there are some "quantum versions" of hand-writing recognition algorithms which have been proposed using quantum neural networks. Example: "Recognition of handwritten numerals by Quantum Neural ...
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2answers
1k views

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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3answers
789 views

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 ...
12
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2answers
126 views

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 ...
9
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2answers
352 views

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 ...
13
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1answer
367 views

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 ...
8
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1answer
81 views

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. ...
9
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2answers
182 views

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 ...