Topological error correcting processes from fixed-point path integrals
Quantum 8, 1288 (2024).https://doi.org/10.22331/q-2024-03-20-1288We propose a unifying paradigm for analyzing and constructing topological quantum error correcting codes as dynamical circuits of...
View ArticleSequential hypothesis testing for continuously-monitored quantum systems
Quantum 8, 1289 (2024).https://doi.org/10.22331/q-2024-03-20-1289We consider a quantum system that is being continuously monitored, giving rise to a measurement signal. From such a stream of data,...
View ArticleEntanglement catalysis for quantum states and noisy channels
Quantum 8, 1290 (2024).https://doi.org/10.22331/q-2024-03-20-1290Many applications of the emerging quantum technologies, such as quantum teleportation and quantum key distribution, require singlets,...
View ArticleDissipation as a resource for Quantum Reservoir Computing
Quantum 8, 1291 (2024).https://doi.org/10.22331/q-2024-03-20-1291Dissipation induced by interactions with an external environment typically hinders the performance of quantum computation, but in some...
View ArticleConstant-sized self-tests for maximally entangled states and single...
Quantum 8, 1292 (2024).https://doi.org/10.22331/q-2024-03-21-1292Self-testing is a powerful certification of quantum systems relying on measured, classical statistics. This paper considers self-testing...
View ArticleClassical shadows based on locally-entangled measurements
Quantum 8, 1293 (2024).https://doi.org/10.22331/q-2024-03-21-1293We study classical shadows protocols based on randomized measurements in $n$-qubit entangled bases, generalizing the random Pauli...
View ArticleBeyond-adiabatic Quantum Admittance of a Semiconductor Quantum Dot at High...
Quantum 8, 1294 (2024).https://doi.org/10.22331/q-2024-03-21-1294Semiconductor quantum dots operated dynamically are the basis of many quantum technologies such as quantum sensors and computers. Hence,...
View ArticleThe Gauge Picture of Quantum Dynamics
Quantum 8, 1295 (2024).https://doi.org/10.22331/q-2024-03-21-1295Although local Hamiltonians exhibit local time dynamics, this locality is not explicit in the Schrödinger picture in the sense that the...
View ArticleOverhead-constrained circuit knitting for variational quantum dynamics
Quantum 8, 1296 (2024).https://doi.org/10.22331/q-2024-03-21-1296Simulating the dynamics of large quantum systems is a formidable yet vital pursuit for obtaining a deeper understanding of quantum...
View ArticleEfficient quantum amplitude encoding of polynomial functions
Quantum 8, 1297 (2024).https://doi.org/10.22331/q-2024-03-21-1297Loading functions into quantum computers represents an essential step in several quantum algorithms, such as quantum partial...
View ArticleEffective versus Floquet theory for the Kerr parametric oscillator
Quantum 8, 1298 (2024).https://doi.org/10.22331/q-2024-03-25-1298Parametric gates and processes engineered from the perspective of the static effective Hamiltonian of a driven system are central to...
View ArticleQuantum state preparation via engineered ancilla resetting
Quantum 8, 1299 (2024).https://doi.org/10.22331/q-2024-03-27-1299In this theoretical investigation, we examine the effectiveness of a protocol incorporating periodic quantum resetting for preparing...
View ArticleRandomized measurement protocols for lattice gauge theories
Quantum 8, 1300 (2024).https://doi.org/10.22331/q-2024-03-27-1300Randomized measurement protocols, including classical shadows, entanglement tomography, and randomized benchmarking are powerful...
View ArticleEnriched string-net models and their excitations
Quantum 8, 1301 (2024).https://doi.org/10.22331/q-2024-03-28-1301Boundaries of Walker-Wang models have been used to construct commuting projector models which realize chiral unitary modular tensor...
View ArticleLoss-tolerant architecture for quantum computing with quantum emitters
Quantum 8, 1302 (2024).https://doi.org/10.22331/q-2024-03-28-1302We develop an architecture for measurement-based quantum computing using photonic quantum emitters. The architecture exploits...
View ArticleHeisenberg-limited metrology with perturbing interactions
Quantum 8, 1303 (2024).https://doi.org/10.22331/q-2024-03-28-1303We show that it is possible to perform Heisenberg-limited metrology on GHZ-like states, in the presence of generic spatially local,...
View ArticleGeneration of genuine all-way entanglement in defect-nuclear spin systems...
Quantum 8, 1304 (2024).https://doi.org/10.22331/q-2024-03-28-1304Multipartite entangled states are an essential resource for sensing, quantum error correction, and cryptography. Color centers in solids...
View ArticleFrom Non-Markovian Dissipation to Spatiotemporal Control of Quantum Nanodevices
Quantum 8, 1305 (2024).https://doi.org/10.22331/q-2024-04-03-1305Nanodevices exploiting quantum effects are critically important elements of future quantum technologies (QT), but their real-world...
View ArticleQuantum Monte Carlo simulations for financial risk analytics: scenario...
Quantum 8, 1306 (2024).https://doi.org/10.22331/q-2024-04-04-1306Monte Carlo (MC) simulations are widely used in financial risk management, from estimating value-at-risk (VaR) to pricing...
View ArticleThe qudit Pauli group: non-commuting pairs, non-commuting sets, and structure...
Quantum 8, 1307 (2024).https://doi.org/10.22331/q-2024-04-04-1307Qudits with local dimension $d \gt 2$ can have unique structure and uses that qubits ($d=2$) cannot. Qudit Pauli operators provide a...
View ArticleTwo-Particle Scattering on Non-Translation Invariant Line Lattices
Quantum 8, 1308 (2024).https://doi.org/10.22331/q-2024-04-04-1308Quantum walks have been used to develop quantum algorithms since their inception, and can be seen as an alternative to the usual circuit...
View ArticleImproved Quantum Query Complexity on Easier Inputs
Quantum 8, 1309 (2024).https://doi.org/10.22331/q-2024-04-08-1309Quantum span program algorithms for function evaluation sometimes have reduced query complexity when promised that the input has a...
View ArticleInplace Access to the Surface Code Y Basis
Quantum 8, 1310 (2024).https://doi.org/10.22331/q-2024-04-08-1310In this paper, I cut the cost of Y basis measurement and initialization in the surface code by nearly an order of magnitude. Fusing...
View ArticleEfficient solution of the non-unitary time-dependent Schrodinger equation on...
Quantum 8, 1311 (2024).https://doi.org/10.22331/q-2024-04-08-1311We explore the possibility of adding complex absorbing potential at the boundaries when solving the one-dimensional real-time...
View ArticleQuantum advantage in temporally flat measurement-based quantum computation
Quantum 8, 1312 (2024).https://doi.org/10.22331/q-2024-04-09-1312Several classes of quantum circuits have been shown to provide a quantum computational advantage under certain assumptions. The study of...
View ArticleOptimizing Variational Quantum Algorithms with qBang: Efficiently...
Quantum 8, 1313 (2024).https://doi.org/10.22331/q-2024-04-09-1313Variational quantum algorithms (VQAs) represent a promising approach to utilizing current quantum computing infrastructures. VQAs are...
View ArticleEfficient Computation of the Quantum Rate-Distortion Function
Quantum 8, 1314 (2024).https://doi.org/10.22331/q-2024-04-09-1314The quantum rate-distortion function plays a fundamental role in quantum information theory, however there is currently no practical...
View ArticleClassical analogue of quantum superdense coding and communication advantage...
Quantum 8, 1315 (2024).https://doi.org/10.22331/q-2024-04-09-1315We analyze utility of communication channels in absence of any short of quantum or classical correlation shared between the sender and...
View ArticleDouble-bracket quantum algorithms for diagonalization
Quantum 8, 1316 (2024).https://doi.org/10.22331/q-2024-04-09-1316This work proposes double-bracket iterations as a framework for obtaining diagonalizing quantum circuits. Their implementation on a...
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Call for editors 2024
In 2024 Quantum will celebrate 7 years since the first publications! From that first batch of papers, the journal grew to over 1300 published articles. This growth was made possible by our incredible...
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