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  2. Quantum efficiency - Wikipedia

    en.wikipedia.org/wiki/Quantum_efficiency

    A graph showing variation of quantum efficiency with wavelength of a CCD chip from Wide Field and Planetary Camera 2, formerly installed on the Hubble Space Telescope.. The term quantum efficiency (QE) may apply to incident photon to converted electron (IPCE) ratio [1] of a photosensitive device, or it may refer to the TMR effect of a magnetic tunnel junction.

  3. Rayleigh–Ritz method - Wikipedia

    en.wikipedia.org/wiki/Rayleigh–Ritz_method

    For example, in the case of beam deflection problems it is wise to use a deformed shape that is analytically similar to the expected solution. A quartic may fit most of the easy problems of simply linked beams even if the order of the deformed solution may be lower.

  4. Dixon's Q test - Wikipedia

    en.wikipedia.org/wiki/Dixon's_Q_test

    To apply a Q test for bad data, arrange the data in order of increasing values and calculate Q as defined: Q = gap range {\displaystyle Q={\frac {\text{gap}}{\text{range}}}} Where gap is the absolute difference between the outlier in question and the closest number to it.

  5. Detective quantum efficiency - Wikipedia

    en.wikipedia.org/wiki/Detective_quantum_efficiency

    The DQE is generally expressed in terms of Fourier-based spatial frequencies as: [10] = = ()where u is the spatial frequency variable in cycles per millimeter, q is the density of incident x-ray quanta in quanta per square millimeter, G is the system gain relating q to the output signal for a linear and offset-corrected detector, T(u) is the system modulation transfer function, and W(u) is the ...

  6. Circuit quantum electrodynamics - Wikipedia

    en.wikipedia.org/wiki/Circuit_quantum...

    The field of circuit QED is a prominent example for quantum information processing and a promising candidate for future quantum computation. [2] In the late 2010s decade, experiments involving cQED in 3 dimensions have demonstrated deterministic gate teleportation and other operations on multiple qubits. [3] [4]

  7. Signal-to-quantization-noise ratio - Wikipedia

    en.wikipedia.org/wiki/Signal-to-quantization...

    The probability distribution function (PDF) represents the distribution of values in and can be denoted as (). The maximum magnitude value of any is denoted by . As SQNR, like SNR, is a ratio of signal power to some noise power, it can be calculated as:

  8. Delta potential - Wikipedia

    en.wikipedia.org/wiki/Delta_potential

    Source: [1] The potential splits the space in two parts (x < 0 and x > 0).In each of these parts the potential is zero, and the Schrödinger equation reduces to =; this is a linear differential equation with constant coefficients, whose solutions are linear combinations of e ikx and e −ikx, where the wave number k is related to the energy by =.

  9. Fusion energy gain factor - Wikipedia

    en.wikipedia.org/wiki/Fusion_energy_gain_factor

    The explosion of the Ivy Mike hydrogen bomb. The hydrogen bomb was the first device able to achieve fusion energy gain factor significantly larger than 1.. A fusion energy gain factor, usually expressed with the symbol Q, is the ratio of fusion power produced in a nuclear fusion reactor to the power required to maintain the plasma in steady state.