

BTQ Technologies
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@BTQ_Tech
BTQ is a global quantum technology company focused on securing mission critical networks. NASDAQ: BTQ, CBOE CA: BTQ $BTQ




The May edition of The Quantum State is live. This month covers: • Policy momentum in the U.S. with the advancement of the National Quantum Initiative Reauthorization Act • Continued capital flowing into quantum infrastructure and emerging architectures • Increasing industry focus on quantum-secure systems across crypto, payments, and beyond Plus key developments across partnerships, commercialization, and global coordination shaping the next phase of the industry. quantumstate.beehiiv.com/p/the-quantum-…




BTQ Technologies' QSSN Selected as Core Security Infrastructure for South Korea's First Bank-Led KRW Stablecoin Proof-of-Concept newswire.ca/news-releases/… $BTQ







Why Bitcoin's Biggest Threat Just Divided Wall Street x.com/i/broadcasts/1…


Stabilizer codes have dominated the quantum error correction conversation for a decade. Surface codes, LDPC codes, the Google and IBM roadmaps — all stabilizer-based. The family traces back to the mid-1990s, when Peter Shor's 9-qubit code and Andrew Steane's 7-qubit code proved for the first time that quantum information _could_ be protected from noise at all. This is genuinely non-obvious, since the no-cloning theorem in quantum information doesn't allow us to use the classical trick of just copying the data. Stabilizer codes work, they're well-understood, and everyone knows how to benchmark them. But they have real weaknesses. They struggle with 1. energy gradually leaking out of the system (amplitude damping) 2. qubits that get lost mid-computation without the system knowing which one went missing (deletion errors). And the "logic gates" you can build cheaply on top of stabilizer codes are limited (transversal gates in the Clifford hierarchy). More complexity, expensive workarounds, and that eats into efficiency gains of having the code at all. A new paper from Yingkai Ouyang (Sheffield) and Gavin Brennen (Macquarie and BTQ) — "A theory of quantum error correction for permutation-invariant codes" ([arxiv.org/abs/2602.13638](arxiv.org/abs/2602.13638)) opens a new theory for an alternative. This development complements earlier work from the same team showing that permutation-invariant (PI) codes, used together with more conventional stabilizer codes, can activate the notoriously challenging non-Clifford logical gates for universal quantum computing, and with lower overhead than using stabilizer codes alone.

Quantum is no longer just a research story. It is becoming a strategic and commercial one. March brought major investment, government backing, new partnerships, and continued momentum in quantum computing and quantum-safe infrastructure. Read the April edition of Quantum State for the key developments shaping the industry. quantumstate.beehiiv.com/p/the-quantum-…










BTQ Technologies Advances Quantum Reliability at Scale with First General Theory of Error Correction for Permutation-Invariant Codes prnewswire.com/news-releases/… $BTQ