A Qin Royal Tomb Near Xi'an May Belong to Huayang
A looted royal tomb beside Xi'an Xianyang International Airport contains a 2,250-year-old burial complex whose date, architecture and associated burials point toward Empress Dowager Huayang, although no inscription has conclusively identified the occupant.
Read the analysis
Roman Settlement in Switzerland Shows Signs of a Destructive Fire
Excavations at Ligornetto in southern Switzerland have exposed a Roman complex destroyed by fire, with iron slag and bronze-working waste that may clarify the settlement's economic role.
IBM Hybrid Error Mitigation Cuts Quantum Sampling Overhead 63-Fold
IBM researchers tested a hybrid protocol on a 27-qubit superconducting processor and recovered Ising-model magnetization while reducing inferred error-mitigation sampling overhead by up to 63-fold
Diamond Spin Register Entangles Four Qubits in 14.8 Microseconds
University of Pennsylvania researchers entangled an electron spin with three nuclear memory qubits in diamond at room temperature using one dynamical decoupling sequence rather than a chain of pairwise gates
