Andrew Tanggara
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View article: Qudit low-density parity-check codes
Qudit low-density parity-check codes Open
Qudits offer significant advantages over qubit-based architectures, including more efficient gate compilation, reduced resource requirements, improved error-correction primitives, and enhanced capabilities for quantum communication and cry…
View article: Near-Term Pseudorandom and Pseudoresource Quantum States
Near-Term Pseudorandom and Pseudoresource Quantum States Open
A pseudorandom quantum state (PRS) is an ensemble of quantum states indistinguishable from Haar-random states to observers with efficient quantum computers. It allows one to substitute the costly Haar-random state with efficiently preparab…
View article: Approximate Dynamical Quantum Error-Correcting Codes
Approximate Dynamical Quantum Error-Correcting Codes Open
Quantum error correction plays a critical role in enabling fault-tolerant quantum computing by protecting fragile quantum information from noise. While general-purpose quantum error correction codes are designed to address a wide range of …
View article: Contextuality of Quantum Error-Correcting Codes
Contextuality of Quantum Error-Correcting Codes Open
Universal fault-tolerant quantum computation requires overcoming the Eastin--Knill theorem on quantum error correction (QEC) codes that protect information from noise. This is often accomplished through strategies like magic state distilla…
View article: Simple Construction of Qudit Floquet Codes on a Family of Lattices
Simple Construction of Qudit Floquet Codes on a Family of Lattices Open
Dynamical quantum error-correcting codes (QECC) offer wider possibilities in how one can protect logical quantum information from noise and perform fault-tolerant quantum computation compared to static QECCs. A family of dynamical QECCs ca…
View article: Strategic Code: A Unified Spatio-Temporal Framework for Quantum Error-Correction
Strategic Code: A Unified Spatio-Temporal Framework for Quantum Error-Correction Open
Quantum error-correcting code (QECC) is the central ingredient in fault-tolerant quantum information processing. An emerging paradigm of dynamical QECC shows that one can robustly encode logical quantum information both temporally and spat…
View article: Classically Spoofing System Linear Cross Entropy Score Benchmarking
Classically Spoofing System Linear Cross Entropy Score Benchmarking Open
In recent years, several experimental groups have claimed demonstrations of ``quantum supremacy'' or computational quantum advantage. A notable first claim by Google Quantum AI revolves around a metric called the Linear Cross Entropy Bench…