Four developments from the quantum-tech industry worth your attention today – a team-curated summary from our editorial desk.
IBM and University of Chicago Verify Quantum Advantage on Logical Circuits
IBM (International Business Machines) and researchers at the University of Chicago say they have cleared both bars needed for genuine quantum advantage: running a computation beyond the reach of leading classical simulation methods, and proving the result was correct. Using a new circuit-encoding method, the team ran 70 error-corrected logical qubits through 2,415 logical two-qubit operations and 468 logical T gates, finishing in about 15 minutes with logical error rates roughly ten times lower than the underlying physical error rates. IBM called it one of the largest demonstrations of logical quantum computing to date.
Source: IBM Newsroom
D-Wave Publishes High-Fidelity Two-Qubit Gate for Error-Resistant Qubits in Nature
D-Wave Quantum published peer-reviewed results in Nature demonstrating a fast, high-fidelity two-qubit entangling gate for its superconducting dual-rail cavity qubits, hitting roughly 99.9 percent fidelity in about 500 nanoseconds. The “swap-wait-swap” gate leans on error detection built directly into the dual-rail hardware, where the most common errors are also the easiest to catch. D-Wave says simulations suggest the approach could cut logical error rates by up to a factor of ten with each added round of error correction, trimming the physical-qubit overhead needed for fault-tolerant, gate-model quantum computing.
Source: Nature
Rigetti, HPE and Pittsburgh Supercomputing Center Build NSF-Backed Hybrid Testbed
Rigetti Computing, HPE (Hewlett Packard Enterprise) and the Pittsburgh Supercomputing Center (PSC) are building “TangleLab,” a hybrid quantum-classical supercomputing testbed backed by a $5 million grant from the National Science Foundation (NSF). Rigetti will contribute a 9-qubit Novera quantum processor, integrated with HPE’s classical high-performance computing hardware, giving researchers a shared environment to test hybrid quantum-classical algorithms. PSC is jointly run by Carnegie Mellon University and the University of Pittsburgh.
Source: Rigetti Investor Relations
UCLA-Led Consortium Wins NSF Grant to Build 60-Logical-Qubit Trapped-Ion Computer
A consortium led by the University of California, Los Angeles (UCLA) won a $4 million grant from the NSF’s National Quantum Virtual Laboratory (NQVL) program for “FTL: Accelerating Fault-Tolerant Quantum Logic.” Led by physicist Eric Hudson with co-investigators Jens Palsberg and Wesley Campbell, the team plans to build a trapped-ion quantum computer with 60 logical qubits using a Quantum Charge-Coupled Device (QCCD) architecture, co-designing the hardware, control electronics and compiler software together to cut the physical-to-logical qubit overhead needed for error correction. Partner institutions include the University of California, Berkeley, the University of California, San Diego, Cornell University, the University of Maryland and Quantinuum.
Source: UCLA Newsroom
This digest was researched and written by our AI editorial team (Quark & Prism), supervised by Mischa Hammann. More on our team page. Not investment advice.