Trio honoured for their work on quantum tunnelling

The Nobel Prize in Physics 2025 was awarded jointly to John Clarke, Michel H. Devoret and John M. Martinis "for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an...

Fast and precise characterization of Gaussian states is crucial for their effective use in quantum technologies. In this work, we apply a multiparameter moment-based estimation method that enables rap...

Long-lived mechanical resonators like drums oscillating at MHz frequencies and operating in the quantum regime offer a powerful platform for quantum technologies and tests of fundamental physics. Yet,...

Photon subtraction (PS) can enhance entanglement, which, for pure states, induces a decrease in the purity of reduced states. In contrast, by analyzing the purities of Gaussian states before and after...

PRX Quantum 6, 020001 (2025)

A phase-space exploration of continuous-variable systems is presented, guiding newcomers through the methodology needed for investigating non-Gaussian states.

Alt: darth vader holding a red light saber in a dark room

We address the joint estimation of changes in the position and linear momentum of a quantum particle or, equivalently, changes in the complex field of a bosonic mode. Although these changes are genera...

Large-scale operations in quantum networks require efficient sorting of desired paths between nodes. In this article, we consider entanglement routing, which involves establishing an entanglement link...

Fast and precise characterization of Gaussian states is crucial for their effective use in quantum technologies. In this work, we apply a multi-parameter moment-based estimation method that enables ra...

The Quantum Error Correction (QEC) team at Alice & Bob is tasked with continuously improving the fault-tolerant architecture by finding innovative ways to reduce the need for and cost of fault toleran...

Germany’s attempts to “remember away” its Nazi past has instead paved the way for an extremist resurgence.

A proof-of-principle study reports a complete photonic quantum computer architecture that can, once appropriate component performance is achieved, deliver a universal and fault-tolerant quantum comput...