8.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.5k papers
- Rutherford Appleton LaboratoryGB2.4k papers
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- Massachusetts Institute of TechnologyUS2.3k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2.2k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2.2k papers
- University of Maryland, College ParkUS2.2k papers
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- European Organization for Nuclear ResearchCH2.1k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.1k papers
- University of ZurichCH2.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT2k papers
929 papers · 1 filter
Recurrence Time for Finite Quantum Systems
Chaitanya Gupta, Anthony J. Short
We study the time it takes for all states of a finite quantum system to return simultaneously to their original configuration. In particular, we define the recurrence time for a qu…
Experimental demonstration of optimal measurement for unambiguously discriminating asymmetric qudit states
Kang-Min Hu, Min Namkung, Myung-Hyun Sohn +1
Identification of nonorthogonal quantum states without error is crucial for various applications in quantum information technology, as well as the foundations of quantum physics. T…
Resource theory of interactive quantum instruments
Chung-Yun Hsieh, Armin Tavakoli, Huan-Yu Ku +1
Quantum instruments describe both the classical outcome and the updated quantum state in a measurement process. To do this in a non-trivial way, instruments must have the capabilit…
Fermion Doubling in Dirac Quantum Walks
Chaitanya Gupta, Anthony J. Short
We consider discrete spacetime models known as quantum walks, which can be used to simulate Dirac particles. In particular we look at fermion doubling in these models, in which hig…
Phase noise characterisation of a 2-km Hollow-Core Nested Antiresonant Nodeless Fibre for Twin-Field Quantum Key Distribution
Mariella Minder, Sophie Albosh, Obada Alia +5
The performance of quantum key distribution (QKD) is heavily dependent on the physical properties of the channel over which it is executed. Propagation losses and perturbations in…
Unspeakable Coherence Concentration
Benjamin Stratton, Chung-Yun Hsieh, Paul Skrzypczyk
Unspeakable coherence is a key feature separating quantum and classical physics. Modelled as asymmetry with respect to a continuous transformation generated by a physically relevan…
Dynamics and steady states of tight-binding chains in presence of isolated defects
Anish Acharya, Luca Giuggioli, Shamik Gupta
Reduced transport and localization in isolated quantum systems are typically attributed to spatially-extended disorder, but may also emerge from the influence of a few controllable…
Adaptive quantum phase estimation can be better than non-adaptive
Noah Linden, Ronald de Wolf
Quantum phase estimation is one of the most important tools in quantum algorithms. It can be made non-adaptive (meaning all applications of the unitary happen simultaneously)…
Limits of Absoluteness of Observed Events in Timelike Scenarios: A No-Go Theorem
Sumit Mukherjee, Jonte R. Hance
Wigner's Friend-type paradoxes challenge the assumption that events are absolute -- that when we measure a system, we obtain a single result, which is not relative to anything or a…
Complete characterisation of state conversions by work extraction
Chung-Yun Hsieh, Manuel Gessner
We introduce a thermodynamic work extraction task that describes the energy storage enhancement of quantum systems. This task induces majorisation-like conditions that provide a ne…
Fusion-based implementation of qLDPC codes with quantum emitters
Susan X. Chen, Matthias C. Löbl, Ming Lai Chan +2
Quantum low-density parity check (qLDPC) codes offer higher encoding rate than topological codes, e.g. surface codes, making them favourable for practical, fault-tolerant quantum c…
Coexistence of Entanglement-based Quantum Channels with DWDM Classical Channels over Hollow Core Fibre in a Four Node Quantum Communication Network
Marcus J Clark, Obada Alia, Sima Bahrani +10
We experimentally demonstrate the coexistence of three entanglement-based quantum channels with carrier-grade classical optical channels over km hollow core nested antiresona…
Reply to "Counterfactual communication not achieved yet -- A Comment on Salih et al. (2022)"
Hatim Salih, Jonte R. Hance, Will McCutcheon +1
In his Comment on our recent paper ``The laws of physics do not prohibit counterfactual communication'', \textit{npj Quantum Information} (2022) 8:60, Popescu argues that the claim…
Integrated photonics for continuous-variable quantum optics
R. N. Clark, B. Puzio, O. M. Green +4
Quantum technologies promise profound advances in communication security, sensing and computing. The underpinning hardware must be engineered to generate, manipulate and detect qua…
A Fundamental Bound for Robust Quantum Gate Control
Robert L. Kosut, Daniel A. Lidar, Herschel Rabitz
We derive a universal performance limit for coherent quantum control in the presence of modeled and unmodeled uncertainties. For any target unitary that is implementable in the…
Charge acceleration without radiation
Yakir Aharonov, Daniel Collins, Sandu Popescu
The existence of electromagnetic radiation - radio-waves, microwaves, light, x-rays and so on - is one of the most important physical phenomena, and our ability to manipulate them…
Practical blueprint for low-depth photonic quantum computing with quantum dots
Ming Lai Chan, Aliki Anna Capatos, Peter Lodahl +2
Fusion-based quantum computing is an attractive model for fault-tolerant computation based on photonics requiring only finite-sized entangled resource states followed by linear-opt…
Coarse-grained quantum thermodynamics: Observation-dependent quantities, observation-independent laws
Giulia Rubino, Časlav Brukner, Gonzalo Manzano
In both classical and quantum thermodynamics, physical quantities are typically assigned objective values defined independently of our observations. We then refer to the 'work perf…
An Algorithm for Estimating -Stabilizer Rényi Entropies via Purity
Benjamin Stratton
Non-stabilizerness, or magic, is a resource for universal quantum computation in most fault-tolerant architectures; access to states with non-stabilizerness allows for non-classica…
Cooling a Qubit using n Others
Jake Xuereb, Benjamin Stratton, Alberto Rolandi +3
In the task of unitarily cooling a quantum system with access to a larger quantum system, known as the machine or reservoir, how does the structure of the machine impact an agent's…
Large Parts are Generically Entangled Across All Cuts
Mu-En Liu, Kai-Siang Chen, Chung-Yun Hsieh +2
Generic high-dimensional bipartite pure states are overwhelmingly likely to be highly entangled. Remarkably, this ubiquitous phenomenon can already arise in finite-dimensional syst…
Quantum Contextuality Requires Counterfactual Gain
Yuki Sagawa, Jonte R. Hance, Holger F. Hofmann +1
Quantum contextuality, where measurement outcomes depend on the measurement context, implies a failure of classical realism in quantum systems. As recently shown, the transition be…
Observation of Full Hierarchy of Temporal Quantum Correlations with a Superconducting Qubit
Hao-Cheng Weng, Chen-Yeh Wei, Huan-Yu Ku +3
Temporal quantum correlations provide an intriguing way of testing quantumness at the macroscopic level, with a logical hierarchy present among the quantum correlations associated…
Composable framework for device-independent state certification
Rutvij Bhavsar, Lewis Wooltorton, Joonwoo Bae
Certifying a quantum state in a device-independent (DI) manner, in which no trust is placed on the internal workings of any physical components, is a fundamental task bearing vario…