Tags

A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

A machine learning model or algorithm that combines concepts from quantum computing and artificial neural networks encompassing a variety of ideas, ranging from quantum computers emulating the exact c…
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For questions about the effect of a quantum system's environment on the system of interest.
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For questions about how a quantum state (wavefunction, density matrix, Wigner distribution, etc.) changes with respect to time. Also for questions about how to calculate quantum dynamics.
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A cryptocurrency (or crypto currency) is a digital asset designed to work as a medium of exchange that uses cryptography to secure its transactions, to control the creation of additional units, and to…
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For questions related to microscopic systems made of a large number of interacting particles as relevant to quantum computing, or simulation of such systems using a quantum computer.
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The study of making high-resolution and highly sensitive measurements of physical parameters using quantum theory to describe the physical systems, particularly exploiting quantum entanglement and qua…
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For questions related to the "Swap test": a quantum algorithm whose purpose is to quantify the distance between two given quantum states.
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Trapped ion quantum computing is one proposed approach to a large-scale quantum computing. Ions, or charged atomic particles, can be confined and suspended in free space using electromagnetic fields. …
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Boson sampling constitutes a restricted model of non-universal quantum computation introduced by S. Aaronson and A. Arkhipov. It consists of sampling from the probability distribution of identical bos…
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A tensor network is simply a countable collection of tensors connected by contractions. ‘Tensor network methods’ is the term given to the entire collection of associated tools, which are regularl…
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For questions about embedding problems onto quantum annealing hardware, whether or not by minor-embedding or sub-division-embedding.
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TensorFlow Quantum (TFQ) is a quantum machine learning library for rapid prototyping of hybrid quantum-classical ML models. It integrates quantum computing algorithms and logic designed in Cirq and pr…
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a procedure that outputs repeated examples of the same quantum system - particle or multiparticle system - in the same quantum state
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The quantum analog of the classical Fisher information, a way of measuring the amount of information that a random observable A carries about an unknown parameter θ of a distribution that models A. Th…
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The highest rate at which quantum information can be communicated over many independent uses of a noisy quantum channel (e.g. a qubit) from a sender to a receiver.
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For questions about the positive partial transpose (PPT) criterion, or more generally about PPT states.
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A Python library for quantum programming using Quil. http://docs.rigetti.com
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The ZX-calculus is a high-level and intuitive graphical language for pure qubit quantum mechanics (QM), based on category theory. (arXiv: 1602.04744)
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For questions about the use of functionals to detect the entanglement of a given quantum state.
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For questions about compiling problems on quantum hardware. For annealing devices, this can include minor-embedding, quadratization, and other types of gadgetization; while for circuit-based devices t…
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For questions about the max entropy (also called Hartley entropy) or max-relative entropy functions.
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Roughly speaking, quantum volume measures the worth of quantum computing hardware by the square of the maximum depth of quantum computations it permits but limits its value to the square of the qubits…
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For questions about money whose security is based on aspects of the No-Cloning Theorem.
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For questions about quantum technologies that act as enabling technologies for quantum computing. Also for for questions comparing the challenges faced and opportunities created by different quantum t…
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For questions regarding quantum Fourier sampling. It's a method of efficiently approximating the distribution, sampled after a quantum Fourier transform over a system of qubits.
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For questions about Stim, the open source tool for high-performance simulation of quantum stabilizer circuits.
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Quantum cloning is a process that takes an arbitrary, unknown quantum state and makes an exact copy without altering the original state in any way. (Wikipedia)
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For questions related to quantum operation obtainable via local operations and classical communication.
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Questions directed to the Gottemsman-Knill theorem, which states that quantum circuits consisting of elements from the Clifford group are classically efficient to simulate.
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the procedure of entangling particles that do not share a common past, i.e. without any direct interaction
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For questions about inner products and inner product spaces, including questions about the dot product. An inner product space is a vector space equipped with an inner product. The dot product (seen i…
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Eigenvalues are numbers associated with a linear operator from a vector space 𝑉 to itself: 𝜆 is an eigenvalue of 𝑇:𝑉→𝑉 if the map 𝑥↦𝜆𝑥−𝑇𝑥 is not injective.
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For questions about trace, the sum of elements on the main diagonal of a square matrix, which can concern matrices, operators, or functions.
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For questions about the entanglement measure derived from the PPT separability criterion.
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Semidefinite programming (SDP) is a subfield of convex optimization concerned with the optimization of a linear objective function (a user-specified function that the user wants to minimize or maximiz…
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For questions related to applications of quantum computing in the biological sciences.
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