Daniel Crow
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Repeated Ancilla Reuse for Logical Computation on a Neutral Atom Quantum Computer Open
Quantum processors based on neutral atoms trapped in arrays of optical tweezers have appealing properties, including relatively easy qubit number scaling and the ability to engineer arbitrary gate connectivity with atom movement. However, …
Repeated ancilla reuse for logical computation on a neutral atom quantum computer Open
Quantum processors based on neutral atoms trapped in arrays of optical tweezers have appealing properties, including relatively easy qubit number scaling and the ability to engineer arbitrary gate connectivity with atom movement. However, …
High-Fidelity Universal Gates in the Ground-State Nuclear-Spin Qubit Open
Arrays of optically trapped neutral atoms are a promising architecture for the realization of quantum computers. In order to run increasingly complex algorithms, it is advantageous to demonstrate high-fidelity and flexible gates between lo…
High-fidelity universal gates in the $^{171}$Yb ground state nuclear spin qubit Open
Arrays of optically trapped neutral atoms are a promising architecture for the realization of quantum computers. In order to run increasingly complex algorithms, it is advantageous to demonstrate high-fidelity and flexible gates between lo…
Fault-tolerant quantum computation with a neutral atom processor Open
Quantum computing experiments are transitioning from running on physical qubits to using encoded, logical qubits. Fault-tolerant computation can identify and correct errors, and has the potential to enable the dramatically reduced logical …
Iterative Assembly of Atom Arrays with Cavity-Enhanced Optical Lattices Open
Assembling and maintaining large arrays of individually addressable atoms is a key requirement for continued scaling of neutral-atom-based quantum computers and simulators. In this work, we demonstrate a new paradigm for assembly of atomic…
Iterative assembly of $^{171}$Yb atom arrays with cavity-enhanced optical lattices Open
Assembling and maintaining large arrays of individually addressable atoms is a key requirement for continued scaling of neutral-atom-based quantum computers and simulators. In this work, we demonstrate a new paradigm for assembly of atomic…
Quantum Subspace Correction for Constraints Open
We demonstrate that it is possible to construct operators that stabilize the constraint-satisfying subspaces of computational problems in their Ising representations. We provide an explicit recipe to construct unitaries and associated meas…
Mid-circuit qubit measurement and rearrangement in a $^{171}$Yb atomic array Open
Measurement-based quantum error correction relies on the ability to determine the state of a subset of qubits (ancillae) within a processor without revealing or disturbing the state of the remaining qubits. Among neutral-atom based platfor…
Measurement-free implementations of small-scale surface codes for quantum-dot qubits Open
The performance of quantum error correction schemes depends sensitively on\nthe physical realizations of the qubits and the implementations of various\noperations. For example, in quantum dot spin qubits, readout is typically much\nslower …
Measurement-free implementations of small-scale surface codes for quantum dot qubits Open
The performance of quantum error correction schemes depends sensitively on the physical realizations of the qubits and the implementations of various operations. For example, in quantum dot spin qubits, readout is typically much slower tha…
Improved Error Thresholds for Measurement-Free Error Correction Open
Motivated by limitations and capabilities of neutral atom qubits, we examine whether measurement-free error correction can produce practical error thresholds. We show that this can be achieved by extracting redundant syndrome information, …
Numerical Simulation of Coherent Error Correction Open
A major goal in quantum computation is the implementation of error correction to produce a logical qubit with an error rate lower than that of the underlying physical qubits. Recent experimental progress demonstrates physical qubits can ac…