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.

For questions related to quantum cryptography protocol BB84.
21 questions
For questions about quantum key distribution (QKD). It is a secure communication method which implements a cryptographic protocol involving components of quantum mechanics. (Wikipedia) In case it's al…
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A branch of atomic, molecular, and optical physics dealing with how individual quanta of light, known as photons, interact with atoms and molecules. It includes the study of the particle-like properti…
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Quirk is an open-source drag-and-drop quantum circuit simulator for exploring and understanding small quantum circuits. It was developed by Craig Gidney.
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For questions about quantum foundations. Examples include questions about fundamental axioms, interpretations, contextuality, or generalized probabilistic theories.
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The idea that a quantum computer can simultaneously explore many possible solutions to a problem since quantum memory register can exist in a superposition of states, each component of this superposit…
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For questions about the quantum complexity class referring to problems that can be solved by a quantum computer in polynomial time (the quantum equivalent of the classical complexity class P). You may…
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For questions about the performance of quantum computers and quantum computer emulators.
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For questions related to quantum trits i.e. three-level (dimensional) quantum mechanical systems. They are higher dimensional analogues of qubits (aka quantum bits), which are two-level (dimensional) …
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For question about Quantum Merlin Arthur (QMA), a computational complexity class. QMA is the 'quantum analogue' of NP, that is QMA is to BQP as NP is to P.
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It is a language for specifying pulse level control (i.e. control of the continuous-time dynamics) of a general quantum device independent of the specific hardware implementation. [arXiv:1809.03452]
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For questions about phase kick-back. For a detailed description of the mechanism, go through https://quantumcomputing.stackexchange.com/questions/2565 and the answers therein.
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For questions about the theory and practical construction of dedicated quantum memory which is analogous to the memory in a normal computer, but consists of 'quantum state' (e.g. (partially) from qubi…
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The randomized benchmarking method yields estimates of the computationally relevant errors without relying on accurate state preparation and measurement. Since it involves long sequences of randomly c…
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For questions regarding design, development or theory of solid-state devices as relevant to quantum computers. May also be used for questions regarding solid state physics or chemistry, if they are re…
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For questions on the Bernstein-Vazirani algorithm.
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For questions about geometrical features of the set of quantum states.
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Having to do with continuous distributions, which are 'uniform' in the sense of being invariant under some relevant symmetry. In the case of quantum information theory, this usually relates to unitari…
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For questions regarding the initial state of a system for quantum computation and their preparation.
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For questions about the Solovay-Kitaev theorem (and algorithm), a proof that quantum computers can efficiently simulate any 1-qubit quantum gate using a restricted set of quantum gates, as well as the…
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Questions related to the history of quantum computers and quantum computing. Use this tag to ask questions about they history of an aspect of quantum computing (such as some concept or paradigm).
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For all questions regarding quantum process tomography or derivatives thereof (like gate-set tomography). In quantum process tomography, processes that are performed on qubits are characterized rather…
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For questions about the nonclassical properties of quantum systems, that is, properties of quantum systems that are incompatible with classical physics. Nonclassicality is a more general notion than t…
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The process of rewriting a given input circuit to match the topology of a specific quantum device, and/or to optimize the circuit for execution on present-day noisy quantum systems.
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For questions about quantum control, the study of theory and methods related to driving quantum systems along target dynamics or states.
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For questions about quantum networks. Quantum networks allow for the transmission of quantum information (qubits), between physically separated quantum processors. (Wikipedia)
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For questions about the quantum analogue of the universal Turing machine; i.e., for questions about the theoretical construct that is the universal quantum computer. This tag is not for questions abou…
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Quantum key distribution (QKD) is a secure communication method that implements a cryptographic protocol using quantum mechanics. It enables two parties to produce a shared random secret key known onl…
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For questions about interpretations of quantum mechanics, e.g. Copenhagen, many-worlds, etc.
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For questions related to OpenFermion python library for studying quantum algorithms related to fermionic systems such as those arising in quantum chemistry.
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Entanglement distillation is the transformation of N copies of an arbitrary entangled state into some number of approximately pure Bell pairs, using only local operations and classical communication (…
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For questions about anyons as relevant to quantum computing. An anyon is a type of quasiparticle that occurs only in two-dimensional systems, with properties much less restricted than fermions and bos…
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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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