When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Quantum mechanics - Wikipedia

    en.wikipedia.org/wiki/Quantum_mechanics

    Quantum mechanics is a fundamental theory that describes the behavior of nature at and below the scale of atoms. [2]: 1.1 It is the foundation of all quantum physics, which includes quantum chemistry, quantum field theory, quantum technology, and quantum information science. Quantum mechanics can describe many systems that classical physics cannot.

  3. Controlled NOT gate - Wikipedia

    en.wikipedia.org/wiki/Controlled_NOT_gate

    The classical analog of the CNOT gate is a reversible XOR gate. How the CNOT gate can be used (with Hadamard gates) in a computation.. In computer science, the controlled NOT gate (also C-NOT or CNOT), controlled-X gate, controlled-bit-flip gate, Feynman gate or controlled Pauli-X is a quantum logic gate that is an essential component in the construction of a gate-based quantum computer.

  4. Glossary of elementary quantum mechanics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_elementary...

    For bound system (bound states), the energy spectrum is discrete; for unbound system (scattering states), the energy spectrum is continuous. related mathematical topics: Sturm–Liouville equation Hamiltonian ^ The operator represents the total energy of the system. Schrödinger equation

  5. Quantum Break - Wikipedia

    en.wikipedia.org/wiki/Quantum_Break

    Quantum Break is a 2016 action-adventure third-person shooter video game developed by Remedy Entertainment and published by Microsoft Studios for Windows and Xbox One.The game centers on Jack Joyce (Shawn Ashmore), granted time manipulation powers after a failed time-machine experiment, as he comes into conflict with former friend Paul Serene over how to deal with an apocalyptic "End of Time".

  6. Coherent control - Wikipedia

    en.wikipedia.org/wiki/Coherent_control

    Their theorem based in control theory states that for a finite-dimensional, closed-quantum system, the system is completely controllable, i.e. an arbitrary unitary transformation of the system can be realized by an appropriate application of the controls [20] if the control operators and the unperturbed Hamiltonian generate the Lie algebra of ...

  7. Quantum superposition - Wikipedia

    en.wikipedia.org/wiki/Quantum_superposition

    This leads to quantum systems expressed in the Dirac bra-ket notation: [1]: 245 | = | + | This approach is especially effect for systems like quantum spin with no classical coordinate analog. Such shorthand notation is very common in textbooks and papers on quantum mechanics and superposition of basis states is a fundamental tool in quantum ...

  8. Glossary of quantum computing - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_quantum_computing

    A qubit is a two-state (or two-level) quantum-mechanical system, one of the simplest quantum systems displaying the peculiarity of quantum mechanics. Examples include the spin of the electron in which the two levels can be taken as spin up and spin down; or the polarization of a single photon in which the two states can be taken to be the ...

  9. Symmetry breaking - Wikipedia

    en.wikipedia.org/wiki/Symmetry_breaking

    A 3D representation of a particle in a symmetric system (a Higgs Mechanism) before assuming a lower energy state. In an infinite system (Minkowski spacetime) symmetry breaking occurs, however in a finite system (that is, any real super-condensed system), the system is less predictable, but in many cases quantum tunneling occurs.