Complete Hierarchy for High-Dimensional Steering Certification DOI
Carlos de Gois, Martin Plávala, René Schwonnek

et al.

Physical Review Letters, Journal Year: 2023, Volume and Issue: 131(1)

Published: July 7, 2023

High-dimensional quantum steering can be seen as a test for the dimensionality of entanglement, where devices at one side are not characterized. As such, it is an important component in informational protocols that make use high-dimensional entanglement. Although has been recently observed experimentally, phenomenon lacking general certification procedure. We provide necessary and sufficient conditions to certify entanglement dimension scenario. These stated terms hierarchy semidefinite programs, which also used quantify using robustness. To demonstrate practical viability our method, we characterize scenarios prepared with maximally entangled states measured mutually unbiased bases. Our methods give significantly stronger bounds on noise robustness experimentally

Language: Английский

Colloquium: Incompatible measurements in quantum information science DOI
Otfried Gühne, Erkka Haapasalo, Tristan Kraft

et al.

Reviews of Modern Physics, Journal Year: 2023, Volume and Issue: 95(1)

Published: Feb. 6, 2023

Some measurements in quantum mechanics disturb each other. This has puzzled physicists since the formulation of theory, but only recent decades incompatibility been analyzed depth and detail, using notion joint measurability generalized measurements. In this Colloquium are reviewed from perspective information science. The starts by discussing basic definitions concepts. An overview on applications incompatibility, such as measurement uncertainty relations, characterization correlations, or processing tasks like state discrimination, is then presented. Finally, emerging directions research, a resource theory well other concepts to grasp nature mechanics, discussed.

Language: Английский

Citations

62

Quantum Steering: Practical Challenges and Future Directions DOI Creative Commons
X. D. Yu, Shuming Cheng, Qihuang Gong

et al.

PRX Quantum, Journal Year: 2022, Volume and Issue: 3(3)

Published: Aug. 25, 2022

Recent progress and future possibilities for EPR steering are presented, highlighting practical applications experimental aspects in multipartite, high-dimensional, atomic macroscopic systems.

Language: Английский

Citations

53

Spin Quantum Heat Engine Quantified by Quantum Steering DOI
Wentao Ji, Zihua Chai, Mengqi Wang

et al.

Physical Review Letters, Journal Year: 2022, Volume and Issue: 128(9)

Published: March 1, 2022

Following the rising interest in quantum information science, extension of a heat engine to regime by exploring microscopic systems has seen boon last decade. Although coherence system working medium been investigated play nontrivial role, complete understanding intrinsic advantage engines remains elusive. We experimentally demonstrate that correlation between and thermal bath is critical for Szilárd engine, where naturally excluded. By quantifying nonclassical through steering, we reveal when demon can truly steer medium. The average work obtained taking different ways extraction on be used verify real engine.

Language: Английский

Citations

52

Inverse design of high-dimensional quantum optical circuits in a complex medium DOI Creative Commons
Suraj Goel, Saroch Leedumrongwatthanakun, Natalia Herrera Valencia

et al.

Nature Physics, Journal Year: 2024, Volume and Issue: 20(2), P. 232 - 239

Published: Jan. 19, 2024

Language: Английский

Citations

16

Integrated optical entangled quantum vortex emitters DOI
Jieshan Huang, Jun Mao, Xudong Li

et al.

Nature Photonics, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 28, 2025

Citations

1

Semidefinite Relaxations for High-Dimensional Entanglement in the Steering Scenario DOI Creative Commons
Nicola d'Alessandro, Carles Roch i Carceller, Armin Tavakoli

et al.

Physical Review Letters, Journal Year: 2025, Volume and Issue: 134(9)

Published: March 7, 2025

We introduce semidefinite programming hierarchies for benchmarking relevant entanglement properties in the high-dimensional steering scenario. Firstly, we provide a general method detecting dimensionality through certification of Schmidt number. Its key feature is that computational cost independent number under consideration. Secondly, to estimate fidelity source with any maximally entangled state. Using only basic means, demonstrate usefulness these methods, which can be directly used analyze experiments on systems.

Language: Английский

Citations

1

High-Dimensional Pixel Entanglement: Efficient Generation and Certification DOI Creative Commons
Natalia Herrera Valencia, Vatshal Srivastav, Matej Pivoluska

et al.

Quantum, Journal Year: 2020, Volume and Issue: 4, P. 376 - 376

Published: Dec. 24, 2020

Photons offer the potential to carry large amounts of information in their spectral, spatial, and polarisation degrees freedom. While state-of-the-art classical communication systems routinely aim maximize this information-carrying capacity via wavelength spatial-mode division multiplexing, quantum based on multi-mode entanglement usually suffer from low state quality, long measurement times, limited encoding capacity. At same time, certification methods often rely assumptions that compromise security. Here we show photonic high-dimensional transverse position-momentum degree-of-freedom with a record speed, dimensionality, without making any about or channels. Using tailored macro-pixel basis, precise measurements, modified witness, demonstrate fidelities up 94.4% 19-dimensional state-space, 55 local dimensions, an entanglement-of-formation 4 ebits. Furthermore, our times improvement more than two orders magnitude over previous demonstrations. Our results pave way for noise-robust networks saturate single photons.

Language: Английский

Citations

51

Retrieving High-Dimensional Quantum Steering from a Noisy Environment with N Measurement Settings DOI
Rui Qu, Yunlong Wang,

Min An

et al.

Physical Review Letters, Journal Year: 2022, Volume and Issue: 128(24)

Published: June 16, 2022

One of the most often implied benefits high-dimensional (HD) quantum systems is to lead stronger forms correlations, featuring increased robustness noise. Here, we experimentally demonstrate n-setting linear HD steering criterion. We verify large violation inequalities without full-state tomography. The lower bound 2.24±0.01 in 11 dimensions, exceeding (V<2) two-setting criteria. Hence, a higher strength has been revealed. Moreover, method for enhancing noise increasing dimension, alternatively, by measurement settings. Using entanglement retrieve nonlocality with 63.4±1.4% isotropic fraction, surpassing 50% limitation Our Letter offers potential practical one-sided device-independent information processing that tolerates noisy environment, lossy detection, and transcends present transmission distance limitation.

Language: Английский

Citations

33

Experimental Investigation of Quantum Correlations in a Two-Qutrit Spin System DOI
Yue Fu, Wenquan Liu, Xiangyu Ye

et al.

Physical Review Letters, Journal Year: 2022, Volume and Issue: 129(10)

Published: Aug. 30, 2022

We report an experimental investigation of quantum correlations in a two-qutrit spin system single nitrogen-vacancy center diamond at room temperatures. Quantum entanglement between two qutrits was observed temperature, and the existence nonclassical beyond qutrit case has been revealed. Our work demonstrates potential NV centers as multiqutrit to execute information tasks provides powerful platform for studying fundamental physics high-dimensional systems future.

Language: Английский

Citations

28

Fermionic steering and its monogamy relations in Schwarzschild spacetime DOI Creative Commons
Shu-Min Wu, Hao‐Sheng Zeng

The European Physical Journal C, Journal Year: 2022, Volume and Issue: 82(8)

Published: Aug. 17, 2022

Using two different types of quantification for quantum steering, we study the influence Hawking radiation on steering fermionic fields in Schwarzschild spacetime. The degradation between physically accessible observers and generation inaccessible induced by are studied. We also reveal difference find some monogamy relations entanglement. Furthermore, show properties bosonic

Language: Английский

Citations

25