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The State Preparation of Multivariate Normal Distributions using Tree Tensor Network

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Quantum has published 2260 Papers in 10 Volumes, as well as 87 Views in Quantum Views.

Paper

The State Preparation of Multivariate Normal Distributions using Tree Tensor Network

Hidetaka Manabe and Yuichi Sano,

Quantum 9, 1755 (2025).

The quantum state preparation of probability distributions is an important subroutine for many quantum algorithms. When embedding $D$-dimensional multivariate probability distributions by disc…

Paper

Protecting information in a parametrically driven hybrid quantum system

Siddharth Tiwary, Harsh Sharma, and Himadri Shekhar Dhar,

Quantum 9, 1754 (2025).

The transfer and storage of quantum information in a hybrid quantum system, consisting of an ensemble of atoms or spins interacting with a cavity, is adversely affected by the inhomogeneity…

Paper

Operational verification of the existence of a spacetime manifold

Nikola Paunkovic and Marko Vojinovic,

Quantum 9, 1753 (2025).

We argue that there exists an operational way to establish the observability of the notions of space and time. Specifically, we propose a theory-independent protocol for a gedanken-experimen…

Paper

Rise of conditionally clean ancillae for efficient quantum circuit constructions

Tanuj Khattar and Craig Gidney,

Quantum 9, 1752 (2025).

We introduce conditionally clean ancilla qubits, a new quantum resource, recently explored by [17], that bridges the gap between traditional clean and dirty ancillae. Like dirty ancillae, th…

Paper

Transfer and routing of Gaussian states through quantum complex networks with and without community structure

Markku Hahto, Johannes Nokkala, Guillermo García-Pérez, Sabrina Maniscalco, and Jyrki Piilo,

Quantum 9, 1751 (2025).

The goal in quantum state transfer is to avoid the need to physically transport carriers of quantum information. This is achieved by using a suitably engineered Hamiltonian that induces the…

Paper

Universal adjointation of isometry operations using conversion of quantum supermaps

Satoshi Yoshida, Akihito Soeda, and Mio Murao,

Quantum 9, 1750 (2025).

Identification of possible transformations of quantum objects including quantum states and quantum operations is indispensable in developing quantum algorithms. Universal transformations, de…

Paper

The measurement postulates of quantum mechanics are not redundant

Adrian Kent,

Quantum 9, 1749 (2025).

Masanes, Galley and Müller [39] argue that the measurement postulates of non-relativistic quantum mechanics follow from the structural postulates together with an assumption they call the "p…

Paper

Classical Benchmarks for Variational Quantum Eigensolver Simulations of the Hubbard Model

Antonios M. Alvertis, Abid Khan, Thomas Iadecola, Peter P. Orth, and Norm Tubman,

Quantum 9, 1748 (2025).

Simulating the Hubbard model is of great interest to a wide range of applications within condensed matter physics, however its solution on classical computers remains challenging in dimensio…

Paper

Block encoding bosons by signal processing

Christopher F. Kane, Siddharth Hariprakash, Neel S. Modi, Michael Kreshchuk, and Christian W Bauer,

Quantum 9, 1747 (2025).

Block Encoding (BE) is a crucial subroutine in many modern quantum algorithms, including those with near-optimal scaling for simulating quantum many-body systems, which often rely on Quantum…

Paper

Spontaneous symmetry emergence in a Hermitian system of coupled oscillators without symmetry

T. T. Sergeev, E. S. Andrianov, and A. A. Zyablovsky,

Quantum 9, 1746 (2025).

Spontaneous symmetry breaking in systems with symmetry is a cornerstone phenomenon accompanying second-order phase transitions. Here, we predict the opposite phenomenon, namely, spontaneous…

Paper

Trainability and Expressivity of Hamming-Weight Preserving Quantum Circuits for Machine Learning

Léo Monbroussou, Eliott Z. Mamon, Jonas Landman, Alex B. Grilo, Romain Kukla, and Elham Kashefi,

Quantum 9, 1745 (2025).

Quantum machine learning (QML) has become a promising area for real world applications of quantum computers, but near-term methods and their scalability are still important research topics.…

Paper

On noise in swap ASAP repeater chains: exact analytics, distributions and tight approximations

Kenneth Goodenough, Tim Coopmans, and Don Towsley,

Quantum 9, 1744 (2025).

Losses are one of the main bottlenecks for the distribution of entanglement in quantum networks, which can be overcome by the implementation of quantum repeaters. The most basic form of a qu…

Paper

Quantum detailed balance via elementary transitions

Rocco Duvenhage, Kyle Oerder, and Keagan van den Heuvel,

Quantum 9, 1743 (2025).

Quantum detailed balance is formulated in terms of elementary transitions, in close analogy to detailed balance in a classical Markov chain on a finite set of points. An elementary transitio…

Paper

Stochastic resetting in discrete-time quantum dynamics: steady states and correlations in few-qubit systems

Sascha Wald, Louie Hong Yao, Thierry Platini, Chris Hooley, and Federico Carollo,

Quantum 9, 1742 (2025).

Time evolution in several classes of quantum devices is generated through the application of quantum gates. Resetting is a critical technological feature in these systems allowing for mid-ci…

Paper

Quantum and classical algorithms for nonlinear unitary dynamics

Noah Brustle and Nathan Wiebe,

Quantum 9, 1741 (2025).

Quantum algorithms for Hamiltonian simulation and linear differential equations more generally have provided promising exponential speed-ups over classical computers on a set of problems wit…

Paper

Interplay between external driving, dissipation and collective effects in the Markovian and non-Markovian regimes

Roie Dann,

Quantum 9, 1740 (2025).

Understanding how external driving and dissipation jointly influence the dynamics of open quantum systems is essential for advancing the study of non-equilibrium quantum phenomena and develo…

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