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Single-Qubit States

Definition ∞ Single-Qubit States refer to the fundamental unit of quantum information, a qubit, existing in a single, isolated quantum state. Unlike classical bits that are either 0 or 1, a single qubit can exist in a superposition of both states simultaneously. This foundational concept is critical for building quantum computers and developing quantum algorithms. Understanding these states is basic to quantum computing.
Context ∞ The study of Single-Qubit States is central to the academic and research discussion surrounding quantum computing and its potential applications, including advanced cryptography. Debates often concern the stability and coherence of these delicate quantum states in various physical implementations. Future developments will focus on improving the control and measurement of single qubits to build more robust and scalable quantum processors.

A close-up of intricate electronic components: a square inductive coil, a specialized ASIC-like circuit board, and dark blue/grey cables. This hardware infrastructure underpins decentralized physical infrastructure DePIN and Web3. Components are crucial for cryptographic hashing, transaction validation, and powering validator nodes within distributed ledger technology DLT networks. They enable secure enclave operations, facilitate smart contract execution, and support robust consensus mechanisms, vital for blockchain scalability and private key management.

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Verifiable One-Time Programs Enable Quantum-Assisted Secure Computation

This research introduces verifiable one-time programs, unlocking secure, single-round quantum-assisted computation for critical blockchain and internet applications.