Daniel Gottesman

351 reputation

	351 reputation	bio	website		visits	member for	8 months
2 badges		location			seen	yesterday

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Mar 8	comment	Scaling of quantum error correction Technically, the right parameter is the number of "locations" in the circuit, since errors can occur on qubits even when they are sitting around doing nothing. To a first approximation, the number of locations is number of qubits times the depth of the circuit. (The depth is the number of time steps needed when the circuit is parallelized.) If you ignore storage errors, then the number of gates is the right parameter. Note that the number of gates will typically be much larger than the number of qubits, except for the shortest computations.
Mar 7	answered	Scaling of quantum error correction
Oct 31	answered	Do error checking costs of quantum computing shrink BQP?
Sep 27	comment	Proof of Pauli group preservation by Clifford group conjugation? I don't understand what you are asking. How does one prove a definition? There are some standard generalizations to qudit Clifford groups, which share many of the properties of the qubit version. The general group theory construction of preserving a subgroup under conjugation is called the "normalizer".
Sep 12	awarded	Supporter
Sep 12	awarded	Teacher
Sep 12	answered	Anybody have example of two-qubit non-Pauli and non-Clifford quantum gate?
Sep 12	answered	Proof of Pauli group preservation by Clifford group conjugation?