ConferenceProceedings International Symposium on Computer Architecture · June 21, 2025
Quantum Computers face a critical limitation in qubit numbers, hindering their progression towards large-scale and fault-tolerant quantum computing. A significant challenge impeding scaling is crosstalk, characterized by unwanted interactions among neighbo ...
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ConferenceIEEE International Symposium on Information Theory Proceedings · January 1, 2024
Quantum data-syndrome (QDS) codes are a class of quantum error-correcting codes that protect against errors both on the data qubits and on the syndrome itself via redundant measurement of stabilizer group elements. One way to define a QDS code is to choose ...
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ConferenceProceedings IEEE Quantum Week 2024 Qce 2024 · January 1, 2024
Coherent noise on the physical qubits can lead to coherent error on the logical qubits in a quantum error-corrected system, even if the best recovery operator is found. An optimal decoder under coherent noise finds the minimal angle of the logical, coheren ...
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ConferenceProceedings IEEE Quantum Week 2024 Qce 2024 · January 1, 2024
Accurate calibration of control parameters in quan-tum gates is crucial for high-fidelity operations, yet it represents a significant time and resource challenge, necessitating periods of downtime for quantum computers. Robust Phase Estimation (RPE) [8] ha ...
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ConferenceProceedings IEEE Quantum Week 2024 Qce 2024 · January 1, 2024
A large class of problems in the current era of quantum devices involve interfacing between the quantum and classical system. These include calibration procedures, charac-terization routines, and variational algorithms. The control in these routines iterat ...
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ConferenceProceedings IEEE Quantum Week 2024 Qce 2024 · January 1, 2024
Pulse-level control of quantum systems is critical for enabling gate implementations, calibration procedures, and Hamiltonian evolution which fundamentally are not supported by the traditional circuit model. This level of control necessitates both efficien ...
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ConferenceProceedings IEEE Quantum Week 2024 Qce 2024 · January 1, 2024
In this work, we introduce a framework for designing system-agnostic quantum experiments at the pulse level. Our framework uses pulselib, a Python package for system-independent graphical representations of arbitrary pulses, as the domain-specific language ...
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ConferenceInternational Conference on Architectural Support for Programming Languages and Operating Systems ASPLOS · March 25, 2023
Classical computing plays a critical role in the advancement of quantum frontiers in the NISQ era. In this spirit, this work uses classical simulation to bootstrap Variational Quantum Algorithms (VQAs). VQAs rely upon the iterative optimization of a parame ...
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ConferenceProceedings 2023 IEEE International Conference on Quantum Computing and Engineering Qce 2023 · January 1, 2023
Here, we propose a modular framework for representing and generating voltage solutions for near-term ion trap devices. Voltage graphs are separated into individual segments interconnected by shuttling paths through junctions managed by a Finite State Machi ...
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ConferenceProceedings 2023 IEEE International Conference on Quantum Computing and Engineering Qce 2023 · January 1, 2023
Quantum computing has become widely available to researchers via cloud-hosted devices with different technologies using a multitude of software development frameworks. The vertical stack behind such solutions typically features quantum language abstraction ...
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ConferenceProceedings 2022 IEEE International Conference on Quantum Computing and Engineering Qce 2022 · January 1, 2022
Real-time control software and hardware is essential for operating quantum computers. In particular, the software plays a crucial role in bridging the gap between quantum programs and the quantum system. Unfortunately, current control software is often opt ...
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ConferenceProceedings 2022 IEEE International Conference on Quantum Computing and Engineering Qce 2022 · January 1, 2022
Duke ARTIQ Extensions (DAX) provides a framework for writing modular control software for ion-trap quantum systems. DAX allows users to interface with the system at the gate level using an intermediate representation called DAX.program. However, DAX does n ...
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ConferenceProceedings 2022 IEEE International Conference on Quantum Computing and Engineering Qce 2022 · January 1, 2022
Modern quantum computers rely heavily on real-time control systems for operation. Software for these systems is becoming increasingly more complex due to the demand for more features and more real-time devices to control. Unfortunately, testing real-time c ...
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ConferenceProceedings International Symposium on High Performance Computer Architecture · February 1, 2021
Trapped-ion qubits are a leading technology for practical quantum computing. In this work, we present an architectural analysis of a linear-Tape architecture for trapped ions. In order to realize our study, we develop and evaluate mapping and scheduling al ...
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ConferenceProceedings 2021 IEEE International Conference on Quantum Computing and Engineering Qce 2021 · January 1, 2021
Instruction scheduling is a key compiler optimization in quantum computing, just as it is for classical computing. Current schedulers optimize for data parallelism by allowing simultaneous execution of instructions, as long as their qubits do not overlap. ...
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ConferenceProceedings International Symposium on Computer Architecture · May 1, 2020
Trapped ions (TI) are a leading candidate for building Noisy Intermediate-Scale Quantum (NISQ) hardware. TI qubits have fundamental advantages over other technologies such as superconducting qubits, including high qubit quality, coherence and connectivity. ...
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ConferenceOptics Infobase Conference Papers · January 1, 2020
We realize and characterize high fidelity Mølmer-Sørensen gates in chains of up to four 171Yb+ ions using radial modes. The individual qubits are controlled by two addressing beams, which are steered using micro-fabricated tilting mir ...
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ConferenceOptics Infobase Conference Papers · January 1, 2020
We present the hardware design of a trapped-ion quantum computer for 32 fully-connected 171Yb+ hyperfine qubits. The system is engineered for optomechanical stability to ensure high performance quantum gates utilizing a low vibration ...
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ConferenceProceedings International Symposium on Computer Architecture · June 22, 2019
Quantum computation is traditionally expressed in terms of quantum bits, or qubits. In this work, we instead consider three-level qutrits. Past work with qutrits has demonstrated only constant factor improvements, owing to the log2(3) binary-to- ...
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ConferenceProceedings of the Annual International Symposium on Microarchitecture Micro · October 14, 2017
Quantum computing (QC) is at the cusp of a revolution. Machines with 100 quantum bits (qubits) are anticipated to be operational by 2020 [30, 73], and several-hundred-qubit machines are around the corner. Machines of this scale have the capacity to demonst ...
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ConferenceInternational Conference on Architectural Support for Programming Languages and Operating Systems ASPLOS · March 14, 2015
Quantum computing (QC) offers huge promise to accelerate a range of computationally intensive benchmarks. Quantum computing is limited, however, by the challenges of decoherence: i.e., a quantum state can only be maintained for short windows of time before ...
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ConferenceAip Conference Proceedings · January 1, 2015
Trapped laser-cooled atomic ions are a new tool for understanding cold molecular ions. The atomic ions not only sympathetically cool the molecular ions to millikelvin temperatures, but the bright atomic ion fluorescence can also serve as a detector of both ...
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ConferenceProceedings International Symposium on Computer Architecture · August 12, 2013
Work in quantum computer architecture has focused on communication, layout and fault tolerance, largely driven by Shor's factorization algorithm. For the first time, we study a larger range of benchmarks and find that another critical issue is the generati ...
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ConferenceJournal of animal science · May 2012
Ergovaline has been extensively used to study vasoactive effects of endophyte- (Neotyphodium coenophialum) infected tall fescue (Lolium arundinaceum). However, initial results indicated that an extract of toxic tall fescue seed (E+EXT) is more potent than ...
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ConferenceActa Leidensia · January 1990
Initial clinical trials with ivermectin were performed in patients with both roundworm infestation and onchocerciasis. Obvious clinical safety allowed for rapid progression through 5-30-50-100-150-200 mcg/kg in infected patients. Initial studies showed som ...
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