Quantum Information for Babies
Simple explanations of complex ideas for your future genius!
Written by an expert, Quantum Information for Babies is a colorfully simple introduction to one of the fastest-growing areas of technology research. Babies (and grownups!) will learn all about qubits, information systems, and more. With a tongue-in-cheek approach that adults will love, this installment of the Baby University board book series is the perfect way to introduce basic concepts to even the youngest scientists. After all, it's never too early to become a quantum physicist!
Baby University: It only takes a small spark to ignite a child's mind.
Quantum information is the information of the state of a quantum system. It is the basic entity of study in quantum information theory, and can be manipulated using quantum information processing techniques. Quantum information refers to both the technical definition in terms of Von Neumann entropy and the general computational term.
It is an interdisciplinary field that involves quantum mechanics, computer science, information theory, philosophy and cryptography among other fields. Its study is also relevant to disciplines such as cognitive science, psychology and neuroscience. Its main focus is in extracting information from matter at the microscopic scale. Observation in science is one of the most important ways of acquiring information and measurement is required in order to quantify the observation, making this crucial to the scientific method. In quantum mechanics, due to the uncertainty principle, non-commuting observables cannot be precisely measured simultaneously. The act of measurement disturbs the state of the system. Hence, it is impossible to make a perfect measurement in microscopic or quantum systems.
Information is something that is encoded in the state of a quantum system, it is physical. While quantum mechanics deals with examining properties of matter at the microscopic level, quantum information science focuses on extracting information from those properties, and quantum computation manipulates and processes information - performs logical operations - using quantum information processing techniques.