• The conditional quantum entropy is an entropy measure used in quantum information theory. It is a generalization of the conditional entropy of classical...
    4 KB (582 words) - 09:24, 6 February 2023
  • Thumbnail for Conditional entropy
    In information theory, the conditional entropy quantifies the amount of information needed to describe the outcome of a random variable Y {\displaystyle...
    11 KB (2,142 words) - 05:02, 6 July 2025
  • The joint quantum entropy generalizes the classical joint entropy to the context of quantum information theory. Intuitively, given two quantum states ρ...
    5 KB (827 words) - 13:37, 16 August 2023
  • Shannon entropy and its quantum generalization, the von Neumann entropy, one can define a conditional version of min-entropy. The conditional quantum min-entropy...
    15 KB (2,719 words) - 23:06, 21 April 2025
  • Thumbnail for Quantum information
    manipulated using quantum information processing techniques. Quantum information refers to both the technical definition in terms of Von Neumann entropy and the...
    42 KB (4,547 words) - 11:18, 2 June 2025
  • and S(ρA|ρB) a quantum generalization of conditional entropy (not to be confused with conditional quantum entropy), respectively, for probability density...
    21 KB (2,726 words) - 04:24, 10 July 2025
  • of Secrecy Systems conditional entropy conditional quantum entropy confusion and diffusion cross-entropy data compression entropic uncertainty (Hirchman...
    1 KB (93 words) - 09:42, 8 August 2023
  • Thumbnail for Quantum entanglement
    non-empty. In this section, the entropy of a mixed state is discussed as well as how it can be viewed as a measure of quantum entanglement. In classical information...
    115 KB (13,737 words) - 03:59, 18 July 2025
  • In quantum information theory, strong subadditivity of quantum entropy (SSA) is the relation among the von Neumann entropies of various quantum subsystems...
    29 KB (4,724 words) - 15:42, 22 July 2025
  • Rényi entropy is a quantity that generalizes various notions of entropy, including Hartley entropy, Shannon entropy, collision entropy, and min-entropy. The...
    22 KB (3,526 words) - 01:18, 25 April 2025
  • statistics, the Kullback–Leibler (KL) divergence (also called relative entropy and I-divergence), denoted D KL ( P ∥ Q ) {\displaystyle D_{\text{KL}}(P\parallel...
    77 KB (13,075 words) - 21:27, 5 July 2025
  • Thumbnail for Von Neumann entropy
    Gibbs entropy from classical statistical mechanics to quantum statistical mechanics, and it is the quantum counterpart of the Shannon entropy from classical...
    35 KB (5,061 words) - 13:27, 1 March 2025
  • In quantum information theory, quantum relative entropy is a measure of distinguishability between two quantum states. It is the quantum mechanical analog...
    13 KB (2,421 words) - 01:44, 14 April 2025
  • Thumbnail for Entropy (information theory)
    distributions Quantum relative entropy – a measure of distinguishability between two quantum states. Rényi entropy – a generalization of Shannon entropy; it is...
    71 KB (10,208 words) - 07:29, 15 July 2025
  • Thumbnail for Mutual information
    {\displaystyle (x,y)} . Expressed in terms of the entropy H ( ⋅ ) {\displaystyle H(\cdot )} and the conditional entropy H ( ⋅ | ⋅ ) {\displaystyle H(\cdot |\cdot...
    56 KB (8,853 words) - 23:22, 5 June 2025
  • Thumbnail for John von Neumann
    John von Neumann (category Quantum physicists)
    entropy measures in classical information theory can also be generalized to the quantum case, such as Holevo entropy and conditional quantum entropy....
    208 KB (23,708 words) - 13:19, 4 July 2025
  • Thumbnail for Joint entropy
    (Y)-\mathrm {H} (X,Y)\,} . In quantum information theory, the joint entropy is generalized into the joint quantum entropy. The above definition is for...
    6 KB (1,159 words) - 12:49, 14 June 2025
  • Thumbnail for Quantum logic gate
    In quantum computing and specifically the quantum circuit model of computation, a quantum logic gate (or simply quantum gate) is a basic quantum circuit...
    76 KB (10,349 words) - 15:14, 1 July 2025
  • information-theoretic measures such as conditional information, mutual information, or total correlation can be expressed in terms of joint entropy and are thus related...
    14 KB (2,469 words) - 19:06, 3 July 2025
  • Quantum cryptography is the science of exploiting quantum mechanical properties to perform cryptographic tasks. The best known example of quantum cryptography...
    82 KB (9,126 words) - 16:08, 3 June 2025
  • In thermodynamics, the entropy of mixing is the increase in the total entropy when several initially separate systems of different composition, each in...
    30 KB (4,666 words) - 21:22, 17 July 2025
  • information Quantum information science Source coding Ban (unit) Channel capacity Communication channel Communication source Conditional entropy Covert channel...
    69 KB (8,508 words) - 04:47, 12 July 2025
  • the conditional wavefunction of a subsystem for details). It requires a special setup for the conditional wavefunction of a system to obey a quantum evolution...
    126 KB (16,769 words) - 20:20, 20 July 2025
  • State-merging (category Quantum information science)
    sending information using an amount of entanglement given by the conditional quantum entropy, H ( A | B ) = H ( A B ) − H ( B ) . {\displaystyle H(A|B)\,=\...
    3 KB (413 words) - 14:20, 28 May 2025
  • IBM Quantum Platform (previously known as IBM Quantum Experience) is an online platform allowing public and premium access to cloud-based quantum computing...
    15 KB (1,634 words) - 18:35, 2 June 2025
  • Algorithmic cooling (category Quantum information science)
    operations (such as classical logical gates and conditional probability) for minimizing the entropy of the coins, making them more unfair. The case in...
    45 KB (7,131 words) - 00:53, 18 June 2025
  • Thumbnail for Quantum Bayesianism
    S2CID 16829387. Jaynes, E. T. (1990). "Probability in Quantum Theory". In Zurek, W. H. (ed.). Complexity, Entropy, and the Physics of Information. Redwood City...
    70 KB (8,326 words) - 16:45, 18 July 2025
  • Bell's theorem (category Quantum information science)
    number of closely related results in physics, all of which determine that quantum mechanics is incompatible with local hidden-variable theories, given some...
    78 KB (9,867 words) - 22:34, 16 July 2025
  • There is a connection between quantum-dot cells and cellular automata. Cells can only be in one of 2 states and the conditional change of state in a cell...
    23 KB (3,257 words) - 18:27, 21 November 2024
  • {\displaystyle t} of the entropy of x {\displaystyle x} conditional on t {\displaystyle t} plus the marginal (i.e., unconditional) entropy of x {\displaystyle...
    43 KB (6,753 words) - 20:06, 15 April 2025