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  2. 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".

  3. Quantum entanglement - Wikipedia

    en.wikipedia.org/wiki/Quantum_entanglement

    Quantum entanglement is the phenomenon of a group of particles being generated, interacting, or sharing spatial proximity in a manner such that the quantum state of each particle of the group cannot be described independently of the state of the others, including when the particles are separated by a large distance.

  4. 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.

  5. 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 ...

  6. 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.

  7. 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 ...

  8. Quantum mechanics of time travel - Wikipedia

    en.wikipedia.org/wiki/Quantum_mechanics_of_time...

    The first approach uses density matrices to describe the probabilities of different outcomes in quantum systems, providing a statistical framework that can accommodate the constraints of CTCs. The second approach involves state vectors, [7] which describe the quantum state of a system. Both approaches can lead to insights into how time travel ...

  9. Glossary of elementary quantum mechanics - Wikipedia

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

    There is no degeneracy in a 1D system. Energy spectrum The energy spectrum refers to the possible energy of a system. 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 ^