Showing quant-phShow all

1,381 papers · 1 filter

quant-ph2026

Comparison of the standard and dressed-picture master equations for the quantum Rabi model in the ultrastrong coupling regime

Alexandre P. Costa, Hebert S. Rego de Oliveira, Alexandre Dodonov

The goal of this chapter is to investigate the effects of relaxation and dephasing on the quantum Rabi model in the ultrastrong coupling regime, and to provide explicit formulas th…

quant-ph2026

Extensible universal photonic quantum computing with nonlinearity

Shang Yu, Jinzhao Sun, Kuan-Cheng Chen +17

Universal quantum computing requires an architecture that supports both linear circuits and, crucially, strong nonlinear resources. For quantum photonic systems, integrating such n…

quant-ph2026

Macroscopic Quantum Electrodynamics with Gain: Modified Fluctuations and Their Consequences

Daigo Oue

Macroscopic quantum electrodynamics (MQED) provides a unified framework for describing quantum electromagnetic fields in arbitrary macroscopic environments. Central to this theory…

quant-ph2025★ 1 cited

Decoherence from universal tomographic measurements

Dorje C. Brody, Rishindra Melanathuru

The decoherence phenomenon arising from an environmental monitoring of the state of a quantum system, as opposed to monitoring of a preferred observable, is worked out in detail us…

quant-ph2025★ 1 cited

Continuous-variable photonic quantum extreme learning machines for fast collider-data selection

Benedikt Maier, Michael Spannowsky, Simon Williams

We study continuous-variable photonic quantum extreme learning machines as fast, low-overhead front-ends for collider data processing. Data is encoded in photonic modes through qua…

quant-ph2025★ 1 cited

Photonic Hybrid Quantum Computing

Jaehak Lee, Srikrishna Omkar, Yong Siah Teo +4

Photons are a ubiquitous carrier of quantum information: they are fast, suffer minimal decoherence, and do not require huge cryogenic facilities. Nevertheless, their intrinsically…

quant-ph2025

Simulating magic state cultivation with few Clifford terms

Kwok Ho Wan, Zhenghao Zhong, Ainhoa Zapirain

Building upon [arXiv:2509.01224], we present a few methods on how to simulate the non-Clifford magic state cultivation circuits [arXiv:2409.17595] with a sum of C…

quant-ph2025★ 4 cited

Entanglement-Efficient Distribution of Quantum Circuits over Large-Scale Quantum Networks

Felix Burt, Kuan-Cheng Chen, Kin K. Leung

Quantum computers face inherent scaling challenges, a fact that necessitates investigation of distributed quantum computing systems, whereby scaling is achieved through interconnec…

quant-ph2025★ 7 cited

Lindbladian versus Postselected Non-Hermitian Topology

Alexandre Chaduteau, Derek K. K. Lee, Frank Schindler

The recent topological classification of non-Hermitian `Hamiltonians' is usually interpreted in terms of pure quantum states that decay or grow with time. However, many-body system…

quant-ph2025★ 1 cited

A Tractable Protocol for Detection-Loophole-Free Bell Tests over Long Distances

Yazeed K. Alwehaibi, Ewan Mer, Gerard J. Machado +3

Certifying genuine nonclassical correlations over long distances is crucial for device-independent (DI) quantum information protocols. However, in photonic platforms this remains t…

quant-ph2025

Super-resolving frequency measurement with mode-selective quantum memory

Shicheng Zhang, Aonan Zhang, Ilse Maillette de Buy Wenniger +5

High-precision optical frequency measurement underpins modern science and technology, yet conventional spectroscopic techniques struggle to resolve sub-linewidth spectral features.…

quant-ph2025★ 2 cited

Experimental demonstration of generalized quantum fluctuation theorems in the presence of coherence

Hui Li, Jie Xie, Hyukjoon Kwon +3

Fluctuation theorems have elevated the second law of thermodynamics to a statistical realm by establishing a connection between time-forward and time-reversal probabilities, provid…

quant-ph2025★ 1 cited

Neural Network Assisted Fermionic Compression Encoding: A Lossy-QSCI Framework for Resource-Efficient Ground-State Simulations

Yu-cheng Chen, Ronin Wu, M. H. Cheng +1

Quantum computing promises to revolutionize many-body simulations for quantum chemistry, but its potential is constrained by limited qubits and noise in current devices. In this wo…

quant-ph2025

Spectral quantum algorithm for passive scalar transport in shear flows

Philipp Pfeffer, Peter Brearley, Sylvain Laizet +1

The mixing of scalar substances in fluid flows by stirring and diffusion is ubiquitous in natural flows, chemical engineering, and microfluidic drug delivery. Here, we present a sp…

quant-ph2025★ 2 cited

Optimizing the quantum interference between single photons and local oscillator with photon correlations

Hubert Lam, Juan R. Álvarez, Petr Steindl +10

The quantum interference between a coherent state and a single photon is an important tool in continuous variable optical quantum technologies to characterize and engineer non-Gaus…

quant-ph2025★ 5 cited

Prethermalization by Random Multipolar Driving on a 78-Qubit Superconducting Processor

Zheng-He Liu, Yu Liu, Gui-Han Liang +43

Time-dependent drives hold the promise of realizing non-equilibrium many-body phenomena that are absent in undriven systems. Yet, drive-induced heating normally destabilizes the sy…

quant-ph2025★ 6 cited

A Multilevel Framework for Partitioning Quantum Circuits

Felix Burt, Kuan-Cheng Chen, Kin K. Leung

Executing quantum algorithms over distributed quantum systems requires quantum circuits to be divided into sub-circuits which communicate via entanglement-based teleportation. Naiv…

quant-ph2025

Enantiosensitive exceptional points in open chiral systems

Nicola Mayer, Alexander Löhr, Nimrod Moiseyev +2

Exceptional points (EPs) are remarkable spectral degeneracies in a non-Hermitian system's parameter space, where both eigenvalues and eigenstates coalesce. Here, we show that in no…

quant-ph2025

Disentangling quantum autoencoder

Adithya Sireesh, Abdulla Alhajri, M. S. Kim +1

Entangled quantum states are highly sensitive to noise, which makes it difficult to transfer them over noisy quantum channels or to store them in quantum memory. Here, we propose t…

quant-ph2025★ 2 cited

Adaptive Non-Gaussian Quantum State Engineering

Valerio Crescimanna, Shang Yu, Khabat Heshami +1

Non-Gaussian quantum states of bosons are a key resource in quantum information science with applications ranging from quantum metrology to fault-tolerant quantum computation. Gene…

quant-ph2025★ 6 cited

Polynomial Time Quantum Gibbs Sampling for Fermi-Hubbard Model at any Temperature

Štěpán Šmíd, Richard Meister, Mario Berta +1

Recently, there have been several advancements in quantum algorithms for Gibbs sampling. These algorithms simulate the dynamics generated by an artificial Lindbladian, which is met…

quant-ph2024

Completely characterizing multimode nonlinear-optical quantum processes

Geunhee Gwak, Chan Roh, Young-Do Yoon +2

Complete characterization of a multimode optical process has paved the way for understanding complex optical phenomena, leading to the development of novel optical technologies. Un…

quant-ph2024★ 1 cited

Robust implicit quantum control of interacting spin chains

Luca Stefanescu, Louis Edwards-Pratt, Jeremy O'Connor +3

Robust quantum control can achieve noise-resilience of quantum systems and quantum technological devices. While the need for noise-resilience grows with the number of fluctuating q…

quant-ph2024

Use of Faulty States in Cat-Code Error Correction

Michael Hanks, Soovin Lee, Nicolo Lo Piparo +4

Bosonic codes have seen a resurgence in interest for applications as varied as fault tolerant quantum architectures, quantum enhanced sensing, and entanglement distribution. Cat co…