: (kwahn-tuhm mare-ooh-it) n. Latin for "as much as he deserved," the actual value of services performed. Quantum meruit determines the amount to be paid for services when no contract exists or when there is doubt as to the amount due for the work performed but done under circumstances when payment could be expected. This may include a physician's emergency aid, legal work when there was no contract, or evaluating the amount due when outside forces cause a job to be terminated unexpectedly. If a person sues for payment for services in such circumstances the judge or jury will calculate the amount due based on time and usual rate of pay or the customary charge, based on quantum meruit by implying a contract existed.

Quantum meruit is a Latin phrase meaning "what one has earned". In the context of contract law, it means something along the lines of "reasonable value of services".

Quantum networks form an important element of quantum computing and quantum communication systems. Quantum networks facilitate the transmission of information in the form of quantum bits, also called qubits, between physically separated quantum processors.