The capacity of the noisy quantum channel
... example indicates that a quantum channel can transmit quantum information from one time to another as well as from one place to another. As Shannon emphasized, a computer memory is a communications channel. A more complete picture of a quantum channel is as follows (Figure 1): the input signal is s ...
... example indicates that a quantum channel can transmit quantum information from one time to another as well as from one place to another. As Shannon emphasized, a computer memory is a communications channel. A more complete picture of a quantum channel is as follows (Figure 1): the input signal is s ...
Quantum State Engineering on an Optical Transition and
... of this transition, thus showing that decoherence is negligible on the time scale of a few oscillations, i.e., in the time required for a quantum gate operation. We attribute the measured 1 ms decoherence time to laser and magnetic field fluctuations. Heating of the motional degrees of freedom has a ...
... of this transition, thus showing that decoherence is negligible on the time scale of a few oscillations, i.e., in the time required for a quantum gate operation. We attribute the measured 1 ms decoherence time to laser and magnetic field fluctuations. Heating of the motional degrees of freedom has a ...
Nilpotence - Nature`s Code Foundation
... since as Jessel shows such Heaviside operators are fundamental to the formalization of Huygens’ Principle [9]. Thus it seems that the concept of nilpotence (or the empty set as the description of the initial mathematical state of a system as used by Conway in relation to universal models) is founda ...
... since as Jessel shows such Heaviside operators are fundamental to the formalization of Huygens’ Principle [9]. Thus it seems that the concept of nilpotence (or the empty set as the description of the initial mathematical state of a system as used by Conway in relation to universal models) is founda ...
quantum - Word Format
... if the qubit is in state |q> which is not an eigenvector of B, then |Delta B| > 0. Moreover, after the measurement is made on the observable B, the qubit will be changed to some eigenstate of B, just because of the act of measurement. So, if we look at the different orders of measurement of observab ...
... if the qubit is in state |q> which is not an eigenvector of B, then |Delta B| > 0. Moreover, after the measurement is made on the observable B, the qubit will be changed to some eigenstate of B, just because of the act of measurement. So, if we look at the different orders of measurement of observab ...
Quantum Machine Learning Algorithms: Read the
... Crucially, Clader et al. could not rule out the possibility that, once the problem of solving a linear system has been restricted in all these ways, there’s also a classical algorithm that provides the answer in nearly the same amount of time as HHL. The most they could say was that they couldn’t f ...
... Crucially, Clader et al. could not rule out the possibility that, once the problem of solving a linear system has been restricted in all these ways, there’s also a classical algorithm that provides the answer in nearly the same amount of time as HHL. The most they could say was that they couldn’t f ...
Coupling Josephson qubits via a current
... bus, and thus may yield additional errors during the communication between qubits. Finally, an effective method still lacks for refocusing the dynamical-phase shifts of the qubits to realize the desired quantum operations. Here, we propose an effective scheme for coupling any pair of superconducting ...
... bus, and thus may yield additional errors during the communication between qubits. Finally, an effective method still lacks for refocusing the dynamical-phase shifts of the qubits to realize the desired quantum operations. Here, we propose an effective scheme for coupling any pair of superconducting ...
Steven Simon
... • Charge lives in the core • topological degrees of freedom live in the “vorticity” (sort of) The topological degree of freedom can be thought of as the configuration class of the emergent Chern-Simons gauge field. Energy is independent of this topological degree of freedom. ...
... • Charge lives in the core • topological degrees of freedom live in the “vorticity” (sort of) The topological degree of freedom can be thought of as the configuration class of the emergent Chern-Simons gauge field. Energy is independent of this topological degree of freedom. ...
HOW TO DEAL WITH THE ARROW OF TIME GIUSEPPE VITIELLO
... quantization arising from the loss of information [28, 29], to the quantization of matter in curved background [30]. Moreover, it has been applied [31, 32, 33] to the study of the memory capacity problem in the quantum model for the brain [34]. It has been known [21] that in QM time evolution of the ...
... quantization arising from the loss of information [28, 29], to the quantization of matter in curved background [30]. Moreover, it has been applied [31, 32, 33] to the study of the memory capacity problem in the quantum model for the brain [34]. It has been known [21] that in QM time evolution of the ...
Electronic Structure of Multi-Electron Quantum Dots
... approach. One of the first theoretical studies of quantum dots was by Pfannkuche et al. [1], who compared the results of Hartree–Fock self-consistent calculations and exact diagonalisation of the Hamiltonian for two electrons in a circularly symmetric parabolic potential. They found good agreement b ...
... approach. One of the first theoretical studies of quantum dots was by Pfannkuche et al. [1], who compared the results of Hartree–Fock self-consistent calculations and exact diagonalisation of the Hamiltonian for two electrons in a circularly symmetric parabolic potential. They found good agreement b ...
Near-Optimal Dynamical Decoupling of a Qubit
... evolution, uncontrolled coupling between a quantum system and its environment (or bath) may cause the system state to decohere and deviate from its desired evolution. Here we present a dynamical decoupling (DD) [1] scheme designed to mitigate this effect. DD combats this decoherence by suppressing t ...
... evolution, uncontrolled coupling between a quantum system and its environment (or bath) may cause the system state to decohere and deviate from its desired evolution. Here we present a dynamical decoupling (DD) [1] scheme designed to mitigate this effect. DD combats this decoherence by suppressing t ...
PDF only - at www.arxiv.org.
... states. As an example, consider an interferometer (Fig. 1). A light beam at the lower left strikes a "beam splitter" BS--a glass plate angled at 45 degrees to the beam's path--that reflects 50% of the beam upward and transmits 50% forward. Mirrors M re-direct both beams ...
... states. As an example, consider an interferometer (Fig. 1). A light beam at the lower left strikes a "beam splitter" BS--a glass plate angled at 45 degrees to the beam's path--that reflects 50% of the beam upward and transmits 50% forward. Mirrors M re-direct both beams ...