Physicists confirm DT fusion insights from a 1938 experiment. The findings connect past theory with current fusion efforts. A team at Los Alamos National Laboratory has successfully recreated a significant yet largely overlooked physics…
Category: 4. Physics
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Physicists Uncover Forgotten 1938 Fusion Breakthrough That Could Power the Future
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Methods to achieve near-millisecond energy relaxation and dephasing times for a superconducting transmon qubit
Fabrication
This section provides a detailed description of our sample fabrication process, which is an adaptation of the recipe described in ref. 16 to the chemicals and equipment available to us. Notable differences include the choice of CF4 as…
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Evaluating Mandarin tone pronunciation accuracy for second language learners using a ResNet-based Siamese network
The proposed tone assessment method, which utilizes an SN integrated with two large-scale image recognition models, is illustrated in Fig. 1. The SN is employed in this approach to compute the paired tones’ discrepancies, while ResNet-18…
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The role of Sb-over-Te ratio on the structural evolution of GeSbTe phase-change materials
We report the studied materials with different Sb/Te ratios in the ternary diagram of Fig. 1 and in Table 1, including compositions with an Sb/Te ratio both lower and higher than one. We present first the results obtained on these alloys in the…
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Mid-IR standoff measurement of ageing-related spectroscopic changes in bitumen in the 6 µm (1700 cm−1) region. Part 2: Instrument development and results
Initial laboratory results were taken whilst the system was suspended on the aluminium framework. Measurements of the system’s response to changes in height and tilt, measurement stability, bitumen age and moving asphalt were undertaken. A…
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Acoustic metasurface constructed by periodic parallel Helmholtz resonators for gas sensing applications
The analysis of acoustic wave transmission through the proposed structure is examined through FEM methods. The above structure will be simulated using COMSOL Multiphysics software. An oscillating sound pressure of \(\:{p}_{a}=1\) will be applied…
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Low sintering temperature enhancing colossal dielectric permittivity and humidity sensitivity in Ta5+ substituted TiO2 ceramics via high energy ball milling
The structural and compositional characteristics of the 10%TTO sample were analyzed using high–angle annular dark–field scanning transmission electron microscopy (HAADF–STEM), EDS, and XRD, as shown in Fig. 1. The HAADF–STEM image…
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Qutrit toric code and parafermions in trapped ions
Model & ground state preparation
To initialize our experiments, we first prepare the ground state of the rotated \({{\mathbb{Z}}}_{3}\) toric code. The Hilbert space consists of qutrit degrees of freedom, namely \(| 0\rangle \), \(| 1\rangle \),…
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Excessive precision compromises accuracy even with unlimited resources due to the trade-off in quantum metrology
Precision and accuracy
From a physical intuition standpoint, the most straightforward definition of precision is the smallest detectable signal that a system can measure. For sensors with built-in scales, signals smaller than this scale cannot be…
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Amplifying time-harmonic thermal signal in spinning lock-in thermography
Scattering theory (double-layer model)
We begin by considering a theoretical model consisting of two independent rings with their centers aligned along the same axis. We postulate that the medium is homogeneous in the radial direction and the…
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