Quantum Feedback Control: Measuring and Correcting
Quantum feedback control measures a system and adjusts it in real time to stabilize states. Principles, techniques and applications.
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739 articlesQuantum feedback control measures a system and adjusts it in real time to stabilize states. Principles, techniques and applications.
Private channels transmit quantum information with perfect secrecy against an eavesdropper. Private capacity, QKD and practical limits.
Smooth min-entropy and related measures are used to prove the security of QKD and randomness extraction. What these entropies measure.
Quantum causal models extend causal graphs to quantum systems and help explain correlations. The framework and what it clarifies.
Quantum causal networks describe how cause and effect work between quantum systems. Their structure, properties and relation to non-locality.
Quantum Markov chains describe memoryless quantum processes and states with conditional independence. Their structure and applications.
Resource theories treat entanglement, coherence and other quantum properties as scarce resources with allowed operations. Framework and uses.
Squashed entanglement is an entanglement measure with useful properties such as additivity and monogamy. Its definition and applications.
Measurements and noisy channels are irreversible quantum operations. How irreversibility arises and what it means for quantum computing.
Reversible quantum operations are unitary transformations. How reversible gates and circuits work and why unitarity matters in computing.
The phase damping channel models loss of coherence without energy loss. Its formalism, Markovian and non-Markovian dynamics and error correction.
The amplitude damping channel models energy loss, such as a qubit decaying to its ground state. Its Kraus operators, effects and correction.