Quantum skyrmions
As our aim is to study quantum skyrmionic topology in the presence of noise, we begin by constructing a bi-photon entangled state of the form \(\left\vert \Psi \right\rangle=\frac{1}{\sqrt{2}}\left({\left\vert {\ell…
Category: 4. Physics
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Demonstration of robust and efficient quantum property learning with shallow shadows
Preliminaries
We begin by reviewing the framework of randomized measurements and classical shadows. Each randomized measurement scheme is defined by an ensemble of unitary operators \({{\mathcal{E}}}\). A random unitary Ui is then sampled…
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Engineering shear polaritons in 2D twisted heterostructures
The realization of HShPs in twisted bilayer α-MoO3
Monoclinic polar crystals, like β-Ga2O3 and CdWO4, exhibit multiple non-orthogonal phonon resonances within given lattice planes, leading to strongly anisotropic optical…
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Exploring nonlinear dynamics in periodically driven time crystal from synchronization to chaotic motion
Periodic auto-oscillations
For our studies, we have used the same ternary semiconductor structure, with which the CTC was implemented in a reservoir of In, Ga, and As nuclear spins4. The structural parameters are: A 10 μm thick epilayer of…
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Highly efficient carrier multiplication in inverted CdSe/HgSe quantum dots mediated by magnetic impurities
QD synthesis and doping with manganese
We started our work on QD synthesis by optimizing undoped core/shell CdSe/HgSe/ZnS QDs. Bulk HgSe has a negative bandgap of –0.24 eV (ref. 22). In the case of quantum-confined nanostructures, this…
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Discovering interaction mechanisms in crowds via deep generative surrogate experiments
Corbetta, A. & Toschi, F. Physics of human crowds. Annual Review of Condensed Matter Physics 14, 311–333 (2023).
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Still, G. K. Applied Crowd Science (Crc Press, 2021).
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A high-resolution field of view expansion method for single-pixel imaging systems based on DMD and scanning mirror
Field of view expansion imaging principle
DMD and scanning mirror play a crucial role in pixel expansion. DMD selectively reflects or attenuates light signals to expand the range of imaging pixels. On the other hand, scanning mirror alters the…
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Decoupled charge and heat transport in Fe2VAl composite thermoelectrics with topological-insulating grain boundary networks
Decoupling charge and heat transport in Fe2VAl
The lattice thermal conductivity of Fe2VAl Heusler compounds is intrinsically large, κL ≈ 27 W m−1 K−1 at 300 K21, which can be mainly attributed to a lack of structural and chemical…
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How fast ions mitigate turbulence and enhance confinement in tokamak fusion plasmas
Garcia, J. et al. Electromagnetic and fast ions effects as a key mechanism for turbulent transport suppression at JET. Plasma Phys. Control. Fusion 64, 104002 (2022).
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Noise-tolerant LiDAR approaching the standard quantum-limited precision
Experimental setup
A schematic diagram of our method is shown in Fig. 1, and Fig. 1a shows the setup of the system. A collimated pulse laser with a spectrum of 1550 nm and a pulse width of 1 ns is used as the probe light. After passing through…
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