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Universal quantum computers do indeed exist. It's true that some quantum devices are special purpose (e.g., D-Wave's annealers), but most groups doing quantum c
by reikonomusha 9y ago
Universal quantum computers do indeed exist. It's true that some quantum devices are special purpose (e.g., D-Wave's annealers), but most groups doing quantum computation are doing universal gate-based machines (e.g., Rigetti, Google, IBM, etc.). They're just being made at small scales right now (2-50 qubits).
- deleted 9y ago[deleted]
- nabla9 9y agoThese are still using quantum circuit model. Universal quantum gates are universal because they can be can be used to build any circuit. Programming the quantum computer means designing the circuit. Gates are reconfigured for each algorithm. These models are computationally equivalent of course.