The latest in Quantum Thinking
In this work, we demonstrate that a symmetric floating tunable coupler provides a natural platform for fast, high-fidelity adiabatic controlled-Z (CZ) gates. Its favorable energy-level structure eliminates the conventional trade-off between rapid conditional-phase accumulation and adiabatic evolution while preserving exact cancellation of residual ZZ interaction at idling.
Learn MoreWe enumerate the architectural requirements of a quantum-classical cloud platform, and present a framework for benchmarking its runtime performance.
Read MoreWe investigate the feasibility of the assumption that a variety of tasks in quantum programming could be modeled as Markov Decision Processes by exploring its consequences for two of the simplest tasks in quantum programming: state preparation and gate compilation.
Read MoreWe present three measurements that directly quantify the DC and AC flux crosstalk present between tunable transmons.
Read MoreExperimental analysis demonstrates the potential tractability of this application on NISQ hardware.
Read MoreWe introduce an approximate description of an N--qubit state, which contains sufficient information to estimate the expectation value of any observable with precision.
Read MoreLow-pass filtering the AC signal used to drive two-qubit gates between the first and second harmonic frequencies can reduce qubit sensitivity to flux noise at the AC sweet spot.
Read MoreAgents trained through RL techniques are capable of producing short quantum programs with high quality solutions.
Read MoreUsing RF flexible circuits to increase signal density in the dilution refrigerator and package while maintaining signal integrity.
Read MoreWe highlight a certain member of the "XY-family" for which many two-qubit programs admit expression as low-depth circuits.
Read MoreFor superconducting qubits, uncontrolled variation of nominal performance makes obtaining such resolution challenging. We approach this problem by investigating specific combinations of previously reported fabrication techniques on the quality of 242 thin film superconducting resonators and qubits.
Read MoreWe experimentally validate the existence of this AC sweet spot and demonstrate its dependence on white noise power from room temperature electronics.
Read MoreWe describe and implement a family of entangling gates activated by radio-frequency flux modulation applied to a tunable transmon that is statically coupled to a neighboring transmon.
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