Securing 5G Against the Quantum Threat
A new analysis shows that upgrading the 5G core network with post-quantum cryptography is feasible and won’t significantly impact performance.
Science
Scaling Quantum Networks: Error Correction for Long-Distance Communication
New research explores how advanced quantum error correction techniques can overcome the limitations of distance in secure quantum communication networks.
Decoding Qubit Decoherence: The Role of Material Defects
![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.
Quantum Tests: The Silent Threat of Flakiness
A new study sheds light on the surprisingly subtle problem of unreliable tests in quantum software development.
Twisting the Rules: Fault-Tolerant Quantum Gates with Floquet Codes
Researchers have demonstrated a novel approach to implementing logical gates on Floquet codes, leveraging techniques inspired by static code designs to achieve promising levels of fault tolerance.
Sharing Secrets at Scale: A New Approach to Secure Key Agreement
Researchers are bridging the gap between secret sharing and key agreement, enabling secure communication for a growing number of participants.
Walking the Line: A Quantum Hash Function for Enhanced Security
Researchers have developed a novel quantum hash function leveraging the dynamics of a discrete-time quantum walk on a specialized network topology.
Raising the Bar for Quantum Hardware
A new benchmark suite, QuSquare, provides a rigorous and scalable method for evaluating the performance of near-term quantum computers.
Shared Secrets, Securely: A Leap for Quantum Communication
Researchers have demonstrated a practical and efficient method for distributing secret keys among multiple parties using the principles of quantum entanglement.
Beyond Bitcoin: Securing Blockchain Bridges for a Quantum Future
A new protocol, QLink, proposes a robust architecture for cross-chain communication, fortified against the looming threat of quantum computers.