Quantum 8, 1303 (2024). https://doi.org/10.22331/q-2024-03-28-1303 We show that it is possible to perform Heisenberg-limited metrology on GHZ-like states, in the presence of generic spatially local, possibly strong interactions during the measurement process. An explicit protocol, […]
Quantum 8, 1302 (2024). https://doi.org/10.22331/q-2024-03-28-1302 We develop an architecture for measurement-based quantum computing using photonic quantum emitters. The architecture exploits spin-photon entanglement as resource states and standard Bell measurements of photons for fusing them into […]
Quantum 8, 1301 (2024). https://doi.org/10.22331/q-2024-03-28-1301 Boundaries of Walker-Wang models have been used to construct commuting projector models which realize chiral unitary modular tensor categories (UMTCs) as boundary excitations. Given a UMTC $mathcal{A}$ representing the Witt […]
Quantum 8, 1300 (2024). https://doi.org/10.22331/q-2024-03-27-1300 Randomized measurement protocols, including classical shadows, entanglement tomography, and randomized benchmarking are powerful techniques to estimate observables, perform state tomography, or extract the entanglement properties of quantum states. While unraveling […]
Quantum 8, 1299 (2024). https://doi.org/10.22331/q-2024-03-27-1299 In this theoretical investigation, we examine the effectiveness of a protocol incorporating periodic quantum resetting for preparing ground states of frustration-free parent Hamiltonians. This protocol uses a steering Hamiltonian that […]
Quantum 8, 1298 (2024). https://doi.org/10.22331/q-2024-03-25-1298 Parametric gates and processes engineered from the perspective of the static effective Hamiltonian of a driven system are central to quantum technology. However, the perturbative expansions used to derive static […]
Quantum 8, 1297 (2024). https://doi.org/10.22331/q-2024-03-21-1297 Loading functions into quantum computers represents an essential step in several quantum algorithms, such as quantum partial differential equation solvers. Therefore, the inefficiency of this process leads to a major […]
Quantum 8, 1296 (2024). https://doi.org/10.22331/q-2024-03-21-1296 Simulating the dynamics of large quantum systems is a formidable yet vital pursuit for obtaining a deeper understanding of quantum mechanical phenomena. While quantum computers hold great promise for speeding […]
Quantum 8, 1295 (2024). https://doi.org/10.22331/q-2024-03-21-1295 Although local Hamiltonians exhibit local time dynamics, this locality is not explicit in the Schrödinger picture in the sense that the wavefunction amplitudes do not obey a local equation of […]
Quantum 8, 1294 (2024). https://doi.org/10.22331/q-2024-03-21-1294 Semiconductor quantum dots operated dynamically are the basis of many quantum technologies such as quantum sensors and computers. Hence, modelling their electrical properties at microwave frequencies becomes essential to simulate […]
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