Abstract
A chain of singlet-triplet qubits can be an excellent realization of the Ising model, which is in turn a good platform for realizing a discrete time crystal (DTC). However, leakage of the qubits out of their computational subspace may be a problem for such a realization. The authors show that, while leakage is indeed a serious problem for the realization of a DTC, it is not insurmountable - one can mitigate leakage by applying a magnetic field that alternates from one qubit to the next.
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