superconductors

Scientific Reports, Published online: 06 June 2026; doi:10.1038/s41598-026-56236-8 A hardware-efficient Berkeley gate for superconducting quantum processors

Superalkalis are defined as the species having lower ionisation energies (IEs) than alkali atoms or the cations having lower electron affinities than alkali cations. Typical examples include FLi2+, OLi3+, NLi4+, etc., which can be represented by the general formula of XMk+1, where X is a central electronegative atom of valency k, and M represents alkali metal ligands. Enormous progress has been m…

The development of steady-state advanced operation modes with high fusion gain (Q) is a primary objective of magnetic confinement fusion research. The advancement of high-temperature superconducting (HTS) magnet technology has introduced a new development path using devices like SPARC. This path contrasts with the conventional low-temperature superconducting (LTS) approach represented by devices …

This technical appendix presents a toy constrained-optimization demonstration showing why binary partition intuition should not be automatically transferred to ternary or higher-channel systems. In a conserved binary partition a+b=1, additive balance and maximum multiplicative coupling coincide: by AM–GM, the pair coupling ab is maximized at a=b=1/2. In a ternary simplex a+b+c=1, however, the add…

On realizing qbits and quantum gates (hence quantum computation) via quantum states of magnetic flux through (Josephson junctions in) superconductors, manipulated via electromagnetic pulses: Michel H. Devoret, A. Wallraff, John M. Martinis, Superconducting Qubits: A Short Review [arXiv:cond-mat/0411174] John Clarke, Frank K. Wilhelm, Superconducting quantum bits, Nature 453 (2008) 1031–1042 [doi:…

Nature Chemistry, Published online: 01 June 2026; doi:10.1038/s41557-026-02169-8 Achieving simultaneous gains in power density and operational stability in proton-exchange membranes remains a formidable challenge. Now it has been shown that cation-directed assembly and sequential functionalization enable superprotonic polyanion–organic frameworks to serve as multifunctional fillers, delivering bo…

Nature Communications, Published online: 01 June 2026; doi:10.1038/s41467-026-73976-3 CsCr3Sb5 is part of a family of Kagome materials noted for hosting a rich variety of emergent phases. Here, using scanning tunnelling microscopy and spectroscopy, Huang, Xu, Que, Liu and coauthors find two charge density wave orders, intertwined with a tuneable altermagnetic spin density wave order.

Nature Communications, Published online: 01 June 2026; doi:10.1038/s41467-026-72812-y The authors present resonant inelastic X-ray scattering measurements of the cuprate superconductor La2−xSrxCuO4, observing a quantum-critical scaling collapse. From the critical exponent, they argue that the symmetry of the quantum critical point is enlarged from O(2) to O(4), implying that orders beyond just th…

Nature Communications, Published online: 01 June 2026; doi:10.1038/s41467-026-73331-6 The authors report real-time quantum error correction on Rigetti’s Ankaa-2 by integrating a scalable FPGA decoder into the control stack achieving sub-1 μs mean decoding per round and 9.6 us feedback latency. This work provides a concrete advancement on scalable fault-tolerant computing

Abstract The classical Ginzburg–Landau model has long provided the foundation for modeling superconductivity, yet it does not fully capture the rich diversity of unconventional superconducting phenomena observed experimentally. Examples include magnetic superconductors, re-entrant superconductivity, and the cuprates—materials whose behaviors are not adequately explained by traditional Ginzburg–La…

Scientists have achieved a first in studying lanthanum superhydrides, a class of materials that could help unlock superconductivity at much higher temperatures. The dream of transmitting electricity without energy loss has driven decades of superconductivity research. Some of the most promising candidates yet are superhydrides, hydrogen-rich materials that, under immense pressures, have exhibited…

As Moore’s Law slows, superconducting electronics offer ultra-low-power, high-speed computation potential. This paper presents the first full-system superconducting architecture modeling in gem5, evaluating superconducting cores, caches, and interconnects under realistic workloads. We extend gem5 with cryogenic semiconductor (4 GHz) and superconducting (100 GHz) RISC-V cores and multi-level cache…

Nature Communications, Published online: 30 May 2026; doi:10.1038/s41467-026-73778-7 Scanning tunneling spectroscopic imaging reveals a field-driven symmetry breaking of CDW modulations in superconducting NbSe₂. Model calculations suggest that the observed anisotropy originates from a Doppler-shift-induced reconstruction of the dispersion of Bogoliubov quasiparticle excitations.

Scientists have uncovered a surprising new way to control superconductivity — the mysterious phenomenon where electricity flows with zero energy loss. By pairing twisted layers of graphene with a synthetic diamond material, researchers were able to effectively switch superconductivity on and off by tweaking how electrons interact with their surroundings. Even more intriguing, the material behaved…