Building a Scalable Quantum Future: Modular Trapped Ions Take Center Stage

Researchers chart a path toward fault-tolerant quantum computation by exploring the performance of modular architectures for quantum error correction and teleportation.

Researchers chart a path toward fault-tolerant quantum computation by exploring the performance of modular architectures for quantum error correction and teleportation.

Researchers are tackling the significant engineering hurdles in constructing a real-world continuous-variable quantum key distribution system for secure communication.

Researchers have demonstrated a practical quantum conference key agreement system using entangled photons, paving the way for scalable multi-user quantum networks.
New research demonstrates how to achieve unconditional security in quantum communication without relying on shared secret keys, leveraging advanced error correction and optimized transmission rates.

Research reveals that machine learning systems designed to improve the accuracy of quantum computers are susceptible to physical manipulation, raising concerns about the security of quantum computation.

Researchers are exploring high-dimensional time-entanglement as a pathway to secure and scalable blockchain technologies, moving beyond traditional cryptographic methods.

A new analysis shows that upgrading the 5G core network with post-quantum cryptography is feasible and won’t significantly impact performance.

New research explores how advanced quantum error correction techniques can overcome the limitations of distance in secure quantum communication networks.
![Computed tunnel splitting for oxygen-hydrogen and oxygen-deuterium defects exhibits an exponential dependence on the mass-scaled phonon coordinate $Q^{\prime}=Q\sqrt{m/m\_{\mathrm{Nb}}}$, as demonstrated using a four-dimensional Hamiltonian, with distinct behaviors observed for vibrational masses corresponding to vanadium (circles), niobium (squares), and tantalum (triangles), aligning with existing experimental data from reference [29].](https://arxiv.org/html/2512.18156v1/x3.png)
A new theoretical framework details how lattice distortions and anharmonic couplings within superconducting qubit materials drive decoherence, offering insights for improved qubit design.

A new study sheds light on the surprisingly subtle problem of unreliable tests in quantum software development.