Computer chips are a hot commodity. Nvidia is now one of the most valuable companies in the world, and the Taiwanese manufacturer of Nvidia’s chips, TSMC, has been called a geopolitical force. It should come […]
Category: singularityhub
Quantum 8, 1399 (2024). https://doi.org/10.22331/q-2024-07-04-1399 Trapdoor claw-free functions (TCFs) are immensely valuable in cryptographic interactions between a classical client and a quantum server. Typically, a protocol has the quantum server prepare a superposition of two-bit […]
Quantum 8, 1398 (2024). https://doi.org/10.22331/q-2024-07-04-1398 We introduce a new class of random Gottesman-Kitaev-Preskill (GKP) codes derived from the cryptanalysis of the so-called NTRU cryptosystem. The derived codes are $good$ in that they exhibit constant rate […]
Quantum 8, 1397 (2024). https://doi.org/10.22331/q-2024-07-04-1397 Measurement-Based Quantum Computation (MBQC) is a model of quantum computation, which uses local measurements instead of unitary gates. Here we explain that the MBQC procedure has a fundamental basis in […]
Quantum 8, 1396 (2024). https://doi.org/10.22331/q-2024-07-03-1396 The most efficient automated way to construct a large class of quantum photonic experiments is via abstract representation of graphs with certain properties. While new directions were explored using Artificial […]
Quantum 8, 1395 (2024). https://doi.org/10.22331/q-2024-07-03-1395 Variational Quantum Algorithms (VQAs) and Quantum Machine Learning (QML) models train a parametrized quantum circuit to solve a given learning task. The success of these algorithms greatly hinges on appropriately […]
Quantum 8, 1394 (2024). https://doi.org/10.22331/q-2024-07-02-1394 We simulate the logical Hadamard gate in the surface code under a circuit-level noise model, compiling it to a physical circuit on square-grid connectivity hardware. Our paper is the first […]
Quantum 8, 1393 (2024). https://doi.org/10.22331/q-2024-07-02-1393 We derive an analytical expression of a Wigner function that approximately describes the time evolution of the one-dimensional motion of a particle in a nonharmonic potential. Our method involves two […]
Quantum 8, 1392 (2024). https://doi.org/10.22331/q-2024-07-02-1392 Semiconductor platforms are emerging as a promising architecture for storing and processing quantum information, e.g., in quantum dot spin qubits. However, charge noise coming from interactions between the electrons is […]
Quantum 8, 1391 (2024). https://doi.org/10.22331/q-2024-07-02-1391 This paper proves the polynomial equivalence of a broad class of definitions of quantum computational complexity. We study right-invariant metrics on the unitary group—often called `complexity geometries’ following the definition […]
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