Środowiskowe Seminarium z Informacji i Technologii Kwantowych
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2024-03-21 (11:15) 
Marcin Kalinowski (Harvard University)
Neutral atom quantum processors and the error correction frontier [ONLINE]
ONLINE SEMINAR: Meeting ID: 928 9413 0767, Passcode: R6Vx6E
We will present an approach to large-scale quantum information processing based on reconfigurable arrays of neutral atoms trapped and transported in optical tweezers. This digital quantum processor features hundreds of individually addressable physical qubits, high two-qubit gate fidelities, arbitrary connectivity with parallel control, and mid-circuit readout. In particular, we use this platform to explore quantum algorithms with encoded logical qubits and quantum error correction techniques. Using this logical processor with various types of error-correcting codes, we demonstrate that we can improve logical two-qubit gates by increasing code size, outperform physical qubit fidelities, create logical GHZ states, and perform computationally complex scrambling circuits using 48 logical qubits and hundreds of logical gates. These results herald the advent of early error-corrected quantum computation, enabling new applications and inspiring a shift in addressing the challenges that lay ahead.
We will present an approach to large-scale quantum information processing based on reconfigurable arrays of neutral atoms trapped and transported in optical tweezers. This digital quantum processor features hundreds of individually addressable physical qubits, high two-qubit gate fidelities, arbitrary connectivity with parallel control, and mid-circuit readout. In particular, we use this platform to explore quantum algorithms with encoded logical qubits and quantum error correction techniques. Using this logical processor with various types of error-correcting codes, we demonstrate that we can improve logical two-qubit gates by increasing code size, outperform physical qubit fidelities, create logical GHZ states, and perform computationally complex scrambling circuits using 48 logical qubits and hundreds of logical gates. These results herald the advent of early error-corrected quantum computation, enabling new applications and inspiring a shift in addressing the challenges that lay ahead.