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Area of Science:

  • Quantum Computing
  • Atomic Physics

Background:

  • Quantum computers use gate operations between quantum bits (qubits).
  • Parallel entangling gates offer efficiency gains in quantum circuits and algorithms.
  • Implementing parallel gates is challenging due to crosstalk in connected qubit systems.

Purpose of the Study:

  • To present experimental results for parallel two-qubit entangling gates.
  • To demonstrate a one-bit full-addition operation using a depth-four quantum circuit.
  • To showcase a method for exploiting highly connected qubit systems for quantum computing.

Main Methods:

  • Experimental implementation of parallel two-qubit entangling gates.
  • Utilizing trapped 171Yb+ ion qubits in a fully connected array.
  • Employing classical control techniques to manage qubit interactions.

Main Results:

  • Successful execution of parallel entangling gates in a trapped-ion system.
  • Demonstration of a one-bit full-addition operation with a depth-four circuit.
  • Experimental validation of a method to overcome crosstalk in parallel gate operations.

Conclusions:

  • The developed method enables efficient parallel gate operations in trapped-ion quantum computers.
  • This approach can significantly speed up quantum circuit execution.
  • The findings contribute to the advancement of fault-tolerant quantum computing.