Quantum Real-Time Optimization in Control Loops
How quantum algorithms such as QAOA and VQE might be used for real-time optimization, and the coherence and error limits that apply today.
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Quantum Control Systems: Steering a Fragile State
Quantum control systems steer fragile quantum states with shaped pulses and feedback. Techniques, algorithms and applications in computing.
Quantum Simulation Complexity: What Costs What
What it costs to simulate quantum systems, classically and on quantum hardware: complexity analysis, algorithms and the accuracy-resource trade-off.
Quantum Algorithmic Complexity and Kolmogorov Terms
Quantum algorithmic complexity measures the resources an algorithm needs, from gate count and depth to Kolmogorov-style descriptions of states.
Quantum Channel Capacity: Coherent Information
How coherent information defines the quantum capacity of a channel, and related concepts: noise, superdense coding and capacity theorems.
Quantum Hash Functions and Collision Resistance
Quantum hash functions map inputs to quantum states. How they compare with classical hashes, collision resistance and uses in blockchains.
Quantum Digital Signatures Without a Trusted Key
Quantum digital signatures use quantum states to guarantee authenticity and non-repudiation without computational assumptions. How they work.
Quantum Oblivious Transfer and Its Impossibility
Quantum oblivious transfer and why the Lo-Chau and Mayers results rule out unconditionally secure versions without extra assumptions.
Quantum Threshold Cryptography: Splitting Trust
Threshold cryptography splits a key so a minimum number of parties must cooperate. How it combines with QKD and quantum-resistant schemes.
Secure Multi-Party Computation With Quantum Protocols
How quantum protocols support secure multi-party computation, what they add over classical protocols, and the challenges that remain.
Quantum Zero-Knowledge Proofs and Their Limits
Quantum zero-knowledge proofs convince a verifier without revealing anything else, even against quantum attackers. Protocols and limitations.
Quantum Fully Homomorphic Encryption, Explained
Quantum fully homomorphic encryption lets a server compute on encrypted quantum data. How schemes work, their overhead and possible uses.