Fig. 4: Synthesizing arbitrary SU(4) operations with B gates.
From: Efficient implementation of arbitrary two-qubit gates using unified control
a, XEB of the B gate. Under the AshN framework, the B gate is achieved by driving one of the qubits at a Rabi frequency of Ω1 ≈ 2.238g (top). b, Decomposition of an arbitrary SU(4) into two B gates plus single-qubit operations. c, Error per gate for each B-composed Weyl chamber unitary Uw. We sample 152 different unitaries, uniformly selecting 7 plane cuts in the Weyl chamber (planes 6 and 7 are very close to each other). For better visualization, we changed the Weyl chamber orientation as indicated in the bottom right. SWAP†denotes the Hermitian conjugate of SWAP. d, Cumulative distribution function (CDF) of the gate errors.
