// Quantum Computing
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For some Boolean problems, determining a solution now takes the same amount of time regardless of the problem’s size. Quantangle-SAT, a new quantum solver, achieves an expected time complexity of cons…

Equivalence of Local Dynamical Hidden-Variable Models to Static Bell Locality Any attempt to reconcile quantum mechanics with local realism through complex local dynamics is ultimately unsuccessful, a…

Previously, realising complex quantum algorithms demanded bespoke block-encoding generation alongside existing tools like Qualtran and PennyLane. Now, a dedicated high-level abstraction within the Ecl…

Can complex optimisation problems truly be solved with fewer qubits without losing accuracy? Equivalence-preserving Qubit Efficient QAOA (EQE-QAOA) now demonstrates this is possible, preserving variab…

Perfect quantum strategies for quantum magic rectangular games: a complete structural characterization Until now, achieving perfect scores in these games demanded two pairs of Bell states, a presumed …

Previously, obtaining dependable ground-state calculations with neural networks demanded careful tuning of optimisation algorithms. Now, a new method, PRIME-SR, delivers performance matching the best-…

Reconstructing impulse signals as small as 200 keV/$c$ now allows optomechanical sensors to achieve the sensitivity needed for precision measurements of fundamental particle interactions. Previously u…

Engineered broadband Purcell protection using a shared $Π$-filter for multiplexed superconducting qubits Purcell-limited relaxation times exceeding 1ms over 1. 5GHz are now achievable in superconducti…

Can a quantum key distribution system inadvertently broadcast its secrets through the very components designed to secure them. Electrically biased variable optical attenuators, essential for chip-base…

Optical fibres now support micro-structures milled directly onto their core with a precision of λ/80 and λ/50, exceeding the tolerances of previous fabrication methods. This direct fabrication bypasse…

Previously, controlling complex classical systems demanded a compromise between speed, smoothness, and accuracy. Now, techniques borrowed from quantum physics offer an alternative, enabling rapid tran…

Multiscale temporal structures, emerging from the simple observation of two-particle interactions, now reveal the hidden order within complex quantum systems. Previously reliant on qualitative assessm…

The assumption that vibrational modes become predictably thermal in cavity-coupled molecules breaks down when disorder is present, new simulations reveal. Previously, semiclassical methods accurately …

Generating complex quantum states typically becomes less reliable as entanglement increases, yet recent work achieves infidelities between 10−5 and 3 × 10−2 when preparing nine spins. This demonstrate…

Hamiltonian dynamics can now be approximated with an error of ε using a dissipative evolution time of just O(t²/ε), establishing a fundamental limit on the ‘decoherence cost’ of mimicking reversible q…

AtomTwin. jl bypasses the need for manual Hamiltonian definition, directly modelling atoms, laser fields and motion from physical parameters. This unified framework combines realistic atomic structure…

Previously, demonstrating maximal violation of Bell’s inequalities, a key test of quantum mechanics, proved easier with fermions than bosons. Now, calculations reveal vertex operators of chiral bosons…

Previously, optimising quantum precision relied on solutions limited by the Euler-Lagrange condition. Now, a new framework systematically surpasses these, delivering high normalized Quantum Fisher Inf…

For certain quantum systems, simulating interactions at a distance previously demanded three times the computational effort. Now, by harnessing entanglement beyond immediate neighbours, calculations f…

B2i Digital’s April 23rd AI & Technology Virtual Investor Conference features 30-minute presentations from public companies, including those in.

Early neural network research aimed to pinpoint neuron functions, but faced challenges due to neuron polysemanticity—where single neurons activate.

Dissipative preparation of targeted quantum states is now achievable without prior knowledge of a system’s Hamiltonian. This new protocol extends state stabilisation beyond the ground state, offering …

Entanglement typically increases with system size, but a one-dimensional quantum chain coupled to light now defies that expectation. Calculations reveal that entanglement scales logarithmically with l…

Previously, controlling interactions within hybrid atomic systems necessitated altering the materials themselves. Now, a new method achieves continuous tuning and suppression of effective interaction …