Logical qubits can be protected from decoherence by performing quantum error-correction
(QEC) cycles repeatedly. Algorithms for fault-tolerant QEC must be compiled to the specific …

Developing Hamiltonian models for quantum processors with many qubits on the same chip
is crucial for advancing quantum computing technologies. Stray couplings between qubits …

While all quantum algorithms can be expressed in terms of single-qubit and two-qubit gates,
more expressive gate sets can help reduce the algorithmic depth. This is important in the …

We consider a two-dimensional quantum memory of qubits on a torus which encode the
extended Fibonacci string-net code and devise strategies for error correction when those …

The Toffoli gate is a three-qubit controlled-controlled-NOT gate, which plays a central role in
quantum information processing and quantum computing. Recently, hybrid systems and …

Tunable couplers have recently become one of the most powerful tools for implementing two-
qubit gates between superconducting qubits. A tunable coupler typically includes a …

In two-qubit gates activated by microwave pulses, by turning the pulse on or off, the state of
qubits is swapped between entangled or idle modes. In either mode, the presence of stray …

The fidelity of quantum operations is often limited by incoherent errors, which typically can
be modeled by fundamental Markovian noise processes such as amplitude damping and …

While the common practice of decomposing general quantum algorithms into a collection of
single-and two-qubit gates is conceptually simple, in many cases it is possible to have more …

Multi-tone microwave signals are crucial for advanced quantum computing applications,
including frequency-multiplexed qubit control and simultaneous two-qubit gate execution …