Quantum 8, 1282 (2024). https://doi.org/10.22331/q-2024-03-14-1282 In this article, we present a novel approach to investigating entanglement in the context of quantum computing. Our methodology involves analyzing reduced density matrices at different stages of a quantum […]
Quantum 8, 1281 (2024). https://doi.org/10.22331/q-2024-03-14-1281 Dynamically field-programmable qubit arrays (DPQA) have recently emerged as a promising platform for quantum information processing. In DPQA, atomic qubits are selectively loaded into arrays of optical traps that can […]
Quantum 8, 1280 (2024). https://doi.org/10.22331/q-2024-03-14-1280 Teleportation allows Alice to send a pre-prepared quantum state to Bob using only pre-shared entanglement and classical communication. Here we show that it is possible to teleport a state which […]
As the world rushes to make use of the latest wave of AI technologies, one piece of high-tech hardware has become a surprisingly hot commodity: the graphics processing unit, or GPU. A top-of-the-line GPU can […]
Quantum 8, 1279 (2024). https://doi.org/10.22331/q-2024-03-13-1279 Multi-qubit entangling interactions arise naturally in several quantum computing platforms and promise advantages over traditional two-qubit gates. In particular, a fixed multi-qubit Ising-type interaction together with single-qubit X-gates can be […]
Quantum 8, 1278 (2024). https://doi.org/10.22331/q-2024-03-13-1278 Subspace diagonalisation methods have appeared recently as promising means to access the ground state and some excited states of molecular Hamiltonians by classically diagonalising small matrices, whose elements can be […]
Quantum 8, 1277 (2024). https://doi.org/10.22331/q-2024-03-13-1277 Studies have shown that the Hilbert spaces of non-Hermitian systems require nontrivial metrics. Here, we demonstrate how evolution dimensions, in addition to time, can emerge naturally from a geometric formalism. […]
Quantum 8, 1276 (2024). https://doi.org/10.22331/q-2024-03-13-1276 We propose a systematic and efficient quantum circuit composed solely of Clifford gates for simulating the ground state of the surface code model. This approach yields the ground state of […]
Quantum 8, 1275 (2024). https://doi.org/10.22331/q-2024-03-07-1275 Variational quantum algorithms use non-convex optimization methods to find the optimal parameters for a parametrized quantum circuit in order to solve a computational problem. The choice of the circuit ansatz, […]
Quantum 8, 1274 (2024). https://doi.org/10.22331/q-2024-02-29-1274 The quantum simulation of gauge theories on synthetic quantum matter devices has gained a lot of traction in the last decade, making possible the observation of a range of exotic […]
Recent Comments