Category: Paper

Fabrizio Minganti, Vincenzo Savona, and Alberto Biella,

Quantum 7, 1170 (2023).

We investigate and characterize the emergence of finite-component dissipative phase transitions (DPTs) in nonlinear photon resonators subject to $n$-photon driving and dissipation. Exploiting…

Qingxiuxiong Dong, Marco Túlio Quintino, Akihito Soeda, and Mio Murao,

Quantum 7, 1169 (2023).

The quantum switch is a quantum process that creates a coherent control between different unitary operations, which is often described as a quantum process which transforms a pair of unitary…

Tatsuhiko N. Ikeda, Asir Abrar, Isaac L. Chuang, and Sho Sugiura,

Quantum 7, 1168 (2023).

When a time propagator $e^{\delta t A}$ for duration $\delta t$ consists of two noncommuting parts $A=X+Y$, Trotterization approximately decomposes the propagator into a product of exponentials of…

Lauritz van Luijk, Reinhard F. Werner, and Henrik Wilming,

Quantum 7, 1166 (2023).

Catalysts are quantum systems that open up dynamical pathways between quantum states which are otherwise inaccessible under a given set of operational restrictions while, at the same time, t…

Hongkang Ni, Haoya Li, and Lexing Ying,

Quantum 7, 1165 (2023).

Quantum phase estimation is one of the critical building blocks of quantum computing. For early fault-tolerant quantum devices, it is desirable for a quantum phase estimation algorithm to (1…

Mark Steudtner, Sam Morley-Short, William Pol, Sukin Sim, Cristian L. Cortes, Matthias Loipersberger, Robert M. Parrish, Matthias Degroote, Nikolaj Moll, Raffaele Santagati, and Michael Streif,

Quantum 7, 1164 (2023).

Over the past three decades significant reductions have been made to the cost of estimating ground-state energies of molecular Hamiltonians with quantum computers. However, comparatively lit…

Khaldoon Ghanem, Alexander Schuckert, and Henrik Dreyer,

Quantum 7, 1163 (2023).

Simulating properties of quantum materials is one of the most promising applications of quantum computation, both near- and long-term. While real-time dynamics can be straightforwardly imple…

Mankei Tsang,

Quantum 7, 1162 (2023).

A unifying formalism of generalized conditional expectations (GCEs) for quantum mechanics has recently emerged, but its physical implications regarding the retrodiction of a quantum observab…

Alberto Rolandi and Martí Perarnau-Llobet,

Quantum 7, 1161 (2023).

Landauer's principle gives a fundamental limit to the thermodynamic cost of erasing information. Its saturation requires a reversible isothermal process, and hence infinite time. We develop…

Yuan Miao and Eric Vernier,

Quantum 7, 1160 (2023).

The star-triangle relation plays an important role in the realm of exactly solvable models, offering exact results for classical two-dimensional statistical mechanical models. In this articl…

Marek Winczewski, Tamoghna Das, John H. Selby, Karol Horodecki, Paweł Horodecki, Łukasz Pankowski, Marco Piani, and Ravishankar Ramanathan,

Quantum 7, 1159 (2023).

Deriving quantum mechanics from information-theoretic postulates is a recent research direction taken, in part, with the view of finding a beyond-quantum theory; once the postulates are clea…

Ziwen Huang, Yunwei Lu, Anna Grassellino, Alexander Romanenko, Jens Koch, and Shaojiang Zhu,

Quantum 7, 1158 (2023).

Accurate modeling of decoherence errors in quantum processors is crucial for analyzing and improving gate fidelities. To increase the accuracy beyond that of the Lindblad dynamical map, seve…

Giovanni Spaventa, Ludovico Lami, and Martin B. Plenio,

Quantum 7, 1157 (2023).

When two particles interact primarily through gravity and follow the laws of quantum mechanics, the generation of entanglement is considered a hallmark of the quantum nature of the gravitati…

Craig Gidney,

Quantum 7, 1156 (2023).

In this paper, I present a way to compile the surface code into two-body parity measurements ("pair measurements"), where the pair measurements run along the edges of a Cairo pentagonal tili…