Re: The Aliferis Music Achievement Tests

Aliferis, James; Kraehenbuehl, David

doi:10.2307/843200

Cited by 9 publications

(12 citation statements)

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“…For decades, people have been striving to overcome one of the main obstacles to realizing this and other proposed quantum technologies, namely the decoherence caused by the coupling between a qubit and its noisy environment [2,3]. Quantum error correcting codes provide a way to surmount this problem; however, it remains a challenging task to raise the fidelity of qubit control above the error thresholds that determine when these codes work [4][5][6], although considerable experimental progress in recent years has brought this within reach in a number of physical systems [7][8][9][10][11][12][13][14].…”

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confidence: 99%

Geometric formalism for constructing arbitrary single-qubit dynamically corrected gates

et al. 2019

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Implementing high-fidelity quantum control and reducing the effect of the coupling between a quantum system and its environment is a major challenge in developing quantum information technologies. Here, we show that there exists a geometrical structure hidden within the time-dependent Schrödinger equation that provides a simple way to view the entire solution space of pulses that suppress noise errors in a system's evolution. In this framework, any single-qubit gate that is robust against quasistatic noise to first order corresponds to a closed three-dimensional space curve, where the driving fields that implement the robust gate can be read off from the curvature and torsion of the space curve. Gates that are robust to second order are in one-to-one correspondence with closed curves whose projections onto three mutually orthogonal planes each enclose a vanishing net area. We use this formalism to derive new examples of dynamically corrected gates generated from smooth pulses. We also show how it can be employed to analyze the noise-cancellation properties of pulses generated from numerical algorithms such as GRAPE. A similar geometrical framework exists for quantum systems of arbitrary Hilbert space dimension. arXiv:1811.04864v2 [quant-ph]

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confidence: 99%

Geometric formalism for constructing arbitrary single-qubit dynamically corrected gates

et al. 2019

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“…Thus far, Toffoli-state distillation has received little attention. The only published routine has a state cost of eight for quadratic error suppression [15], though a more efficient method was recently suggested by Jones in the conclusion of Ref. [1].…”

Section: Discussionmentioning

confidence: 98%

“…4 using Toffoli states. This distillation routine can be shown to be equivalent to the Toffoli-state distillation routine proposed by Aliferis [15]. Given identically prepared Toffoli states, the probability of an X error on the target is reduced from p to roughly p 2 and the probability of errors that do not involve an X error on the target roughly doubles.…”

Section: Toffoli-state Distillationmentioning

confidence: 95%

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Distilling one-qubit magic states into Toffoli states

Eastin

2013

Phys. Rev. A

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For certain quantum architectures and algorithms, most of the required resources are consumed during the distillation of one-qubit magic states for use in performing Toffoli gates. I show that the overhead for magic-state distillation can be reduced by merging distillation with the implementation of Toffoli gates. The resulting routine distills 8 one-qubit magic states directly to a Toffoli state, which can be used without further magic to perform a Toffoli gate.Comment: 8 pages, 11 figures, 1 table, v2: corrected several careless errors, apologie

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“…In elementary and high school general music classes, for example, teachers routinely use the Music Achievement Tests (Colwell, 1969(Colwell, , 1970, the Iowa Tests of Music Literacy (Gordon, 1970), and the Silver Burdett Music Competency Tests (Colwell, 1979) to assess the accomplishment of learning objectives. In colleges, administrators and faculty members frequently use the Aliferis Music Achievement Test (Aliferis, 1954;Aliferis & Stecklein, 1962), the Australian Test for Advanced Music Studies (Bridges, 1979), and the advanced music test supplement to the Graduate Record Examination (Educational Testing Service, 1986) to select and place students in undergraduate and graduate music programs. But the most popular music listening achievement tests today are those embedded within computer-assisted instructional software programs designed to enhance the acquisition of listening skills.…”

Section: Testing Of Music Listening Skillmentioning

confidence: 99%

Computerized Adaptive and Fixed‐Item Testing of Music Listening Skill: A Comparison of Efficiency, Precision, and Concurrent Validity

Vispoel

Wang

Bleiler

1997

J Educational Measurement

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We evaluated the efficiency, precision, and concurrent validity of results obtained from adaptive and fired-item music listening tests in three studies: (a) a computer simulation study in which each of 2,200 simulees completed a computerized adaptive tonal memory test, a computerized fired-item tonal memory test constructed from items in the adaptive test pool and two standardized group-administered tonal memory tests; (b) a live testing study in which each of 204 examinees took the computerized adaptive test and the standardized tests; and (c) a live testing study in which randomly equivalent groups took either the computerized adaptive test (n = 86) or the computerized fired-item test (n = 86). The adaptive music test required 50% to 93% fewer items to match the reliability and concurrent validity of the fired-item tests, and it yielded higher levels of reliability and concurrent validity than the fired-item tests when test length was held constant. These findings suggest that computerized adaptive tests, which typically have been limited to visually produced items, may also be well suited for measuring skills that require aurally produced items.

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Re: The Aliferis Music Achievement Tests

Cited by 9 publications

References 0 publications

Geometric formalism for constructing arbitrary single-qubit dynamically corrected gates

Geometric formalism for constructing arbitrary single-qubit dynamically corrected gates

Distilling one-qubit magic states into Toffoli states

Computerized Adaptive and Fixed‐Item Testing of Music Listening Skill: A Comparison of Efficiency, Precision, and Concurrent Validity

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