Diamond Light Source’s Post

Our work "Photonic Matrix Multiplier Makes a Direction-Finding Sensor" is available on arXiv. We formulated the problem of finding the direction-of-arrival of an optical beam as a nonuniform discrete Fourier transform, and we introduced a photonic integrated circuit that performs this operation and even goes beyond a discrete mapping to enable continuous tracking of the angle of arrival. Link: https://lnkd.in/eXZM8r3w

Step into the future with Episode 12: 'Crossing Dimensions: Quantum Teleportation Unlocked' 🚀🌌. Explore how quantum mechanics is breaking the boundaries of physics and paving the way for instantaneous communication across the cosmos. From the basics of entanglement to the cutting-edge experiments that bring teleportation from sci-fi to reality, we dive deep into one of the most thrilling aspects of modern science. #QuantumLeap #TeleportationTech #ScienceUnfolded #FutureTech #QuantumFrontiers

A new kind of simulation method based on ordered atomic emitter arrays : "Symmetry based efficient simulation of dissipative quantum many-body dynamics in subwavelength quantum emitter arrays" with Oriol Rubies Bigordà Susanne Yelin and Helmut Ritsch. We propose an efficient method to numerically simulate the dissipative dynamics of large numbers of quantum emitters in ordered arrays in the presence of long-range dipole-dipole interactions. Using the spatial symmetries of the system, we rewrite the equations of motion in a collective spin basis and subsequently apply a higher-order cumulant expansion for the collective operators. By truncating the subradiant collective modes with a heavily suppressed decay rate and keeping only the effect from the radiating collective modes, we reduce the numerical complexity significantly. This allows to efficiently compute the dissipative dynamics, which are challenging to compute for large systems with traditional cumulant expansion methods based on the individual spins. https://lnkd.in/dbUq2qid

HPL: Continuous gradient fusion class activation mapping: segmentation of laser-induced damage on large-aperture optics in dark-field images. Experiments on our dataset show that the proposed method can achieve segmentation performance comparable to that of fully supervised algorithms. https://lnkd.in/giHAaDsW

I am thrilled to see our work online: https://lnkd.in/gnWA8QZH : We investigate different kinds of partial temporal orders, realized by non-periodic yet structured drives, which we call rondeau order. Using a C13-nuclear-spin diamond quantum simulator, we report the first experimental observation of a --- tunable degree of --- short-time disorder in a system exhibiting long-time stroboscopic order. Current quantum simulators with amazing controllability can generate rich and tunable temporal orders, far beyond the conventional classification of spatial ordering as in static systems 👏

Check out our work on time rondeau crystal, which pushes Discrete Time Crystal (DTC) beyond Floquet (periodic) regime. For future applications, we can see it potentially used for spatiotemporal memory (Fig 5.), pulse-width modulation , and frequency-selective DTC-based magnetic field sensor!

I have just posted a work about the role of short and long trajectories on the quantum optical state after high harmonic generation in arXiv. Link: https://lnkd.in/d9Pvcgax

https://lnkd.in/ev5QDKdz How to investigate strongly-correlated materials with an analog Rydberg computer ? In this article, we propose an approximate way to map the Hubbard model onto a transverse-field Ising model that can be implemented on current Rydberg platforms... without the usual overheads of fermion-to-qubit transformations. Antoine Michel, Loïc Henriet, Christophe Domain, Antoine Browaeys #eviden #qaptiva #quantum

Hamiltonian simulation is a key quantum algorithm subroutine. Its time-dependent variant, despite having several applications, has received less attention. In our recent paper “Quantum simulation of time-dependent Hamiltonians via commutator-free quasi-Magnus operators,” we champion commutator-free quasi-Magnus operators (CFQMs). https://lnkd.in/gj_zjh5y

an amazing talk on quantum sensing from Dawn Wood - she deftly gave us an overview of the four major paradigms of sensing in a superb presentation!