The Mamyshev oscillator (MO) is a type of fiber laser capable of producing high-energy laser pulses at a tunable repetition rate. It is a mode-locked laser which uses light travelling within a closed-loop cavity to produce laser emission….
Category: 4. Physics
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Realizing string-net condensation: Fibonacci anyon braiding for universal gates and sampling chromatic polynomials
The DSNP strategy
Our approach to creating minimalistic Fib-SNC is the scalable dynamic string-net preparation (DSNP) strategy (see Fig. 1f). As explained below, we implement this strategy to create τ1 anyons, confirm their anyon charges, and…
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Learning interpretable network dynamics via universal neural symbolic regression
In this work, we wonder to develop a computational tool LLC (Learning Law of Changes) to discover the ordinary differential equations (ODEs) from observed data of network dynamics, i.e., \(\,{\mbox{LLC}}\,:{{{\mathcal{O}}}}\to…
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Exploiting strained epitaxial germanium for scaling low-noise spin qubits at the micrometre scale
Heterostructure growth
The Ge/SiGe heterostructure material is grown using reduced-pressure chemical vapour deposition in an ASMI Epsilon 2000 reactor. Starting from a Ge wafer, a 2.5 μm strain-relaxed Si(1–x)Gex buffer is grown at a…
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Optimization of glass debris in the treatment of swelling clay soils using recycled materials for sustainable road engineering
Identification of materials
The soil used is sourced from the Kenitra region (Morocco), specifically chosen due to its abundance and availability in the area. The results obtained from geotechnical identification tests conducted on clay materials…
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Error analysis of a heating oven for a spin-exchange relaxation-free magnetometer
Temperature measurement and simulation analysis
Accurately determining the convective heat transfer coefficient (crucial for our heat-loss simulation model) is essential for matching actual temperature distributions. However, owing to its…
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Broadband coherent XUV light from e−/e+ microbunching in an intense laser pulse
We begin by outlining the system of equations solved by our point particle code, which is employed to demonstrate the microbunching effect, radiation properties and stability of the system from first principles (see Methods for details on the…
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Minimal state-preparation times for silicon spin qubits
Silicon quantum-processor model
We use a Heisenberg spin-chain model21,43 to describe a typical 1D chain of spin qubits in SiMOS heterostructures23,25,34,38 [see Fig. 1a]:
$$\,\hat{H}\,\left(t\right)\,=\,{-}\mathop{\sum…
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Theoretical and experimental study on traveling wave propagation characteristics of artificial basilar membrane
Frequency selectivity based on numerical simulation
In this section, we provide an explanation of the frequency selectivity of the ABM through COMSOL simulations. The oscillation modes of the ABM in air and liquid environments, denoted as i (where…
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High-throughput discovery of perturbation-induced topological magnons
Hasan, M. Z. & Kane, C. L. Colloquium: topological insulators. Rev. Mod. Phys. 82, 3045–3067 (2010).
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McClarty, P. A. Topological magnons: a review. Annu. Rev. Condens. Matter Phys.…
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