Benchmarking Functionals for Strong-Field Light-Matter Interactions in Adiabatic Time-Dependent Density Functional Theory DOI Creative Commons
Ofer Neufeld, Nicolas Tancogne-Dejean, Ángel Rubio

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(28), P. 7254 - 7264

Published: July 8, 2024

In recent years, time-dependent density functional theory (TDDFT) has been extensively employed for highly nonlinear optics in molecules and solids, including high harmonic generation (HHG), photoemission, more. TDDFT exhibits a relatively low numerical cost while still describing both light-matter electron–electron interactions ab initio, making it appealing. However, the majority of implementations utilize simplest possible approximations exchange-correlation (XC) functional–either local or generalized gradient approximations, which are traditionally considered to have rather poor chemical accuracy. We present first systematic study XC effect on molecular HHG, testing various levels theory. Our results suggest justification using simpler functional, showing that hybrid meta functionals (as well as Hartree–Fock) can, at times, lead unphysical results. The specific source failure more elaborate should be topic future work, but we hypothesize its origin might connected adiabatic approximation TDDFT.

Language: Английский

Quantum Electrodynamics of Intense Laser-Matter Interactions: A Tool for Quantum State Engineering DOI Creative Commons
Philipp Stammer, Javier Rivera-Dean, Andrew S. Maxwell

et al.

PRX Quantum, Journal Year: 2023, Volume and Issue: 4(1)

Published: Jan. 20, 2023

Intense laser-matter interactions are at the center of interest in research and technology since development high-power lasers. They have been widely used for fundamental studies atomic, molecular, optical physics, they core attosecond physics ultrafast optoelectronics. Although majority these successfully described using classical electromagnetic fields, recent investigations based on fully quantized approaches shown that intense laser-atom can be generation controllable high-photon-number entangled coherent states state superpositions. In this tutorial, we provide a comprehensive description interactions. We elaborate processes high-harmonic generation, above-threshold ionization, discuss new phenomena cannot revealed within context semiclassical theories. conditioning light field different electronic processes, their consequences quantum engineering light. Finally, extension approach to more complex materials, impact technologies photonic platform composed symbiosis information science.12 MoreReceived 30 June 2022DOI:https://doi.org/10.1103/PRXQuantum.4.010201Published by American Physical Society under terms Creative Commons Attribution 4.0 International license. Further distribution work must maintain attribution author(s) published article's title, journal citation, DOI.Published SocietyPhysics Subject Headings (PhySH)Research AreasQuantum light-matter interactionQuantum engineeringAtomic, Molecular & OpticalQuantum Information

Language: Английский

Citations

50
Emerging ultrafast techniques for studying quantum materials DOI
Alfred Zong, Bailey R. Nebgen,

Sheng‐Chih Lin

et al.

Nature Reviews Materials, Journal Year: 2023, Volume and Issue: 8(4), P. 224 - 240

Published: Feb. 15, 2023

Language: Английский

Citations

50
Strong–laser–field physics, non–classical light states and quantum information science DOI

Upasana Bhattacharya,

Theocharis Lamprou, Andrew S. Maxwell

et al.

Reports on Progress in Physics, Journal Year: 2023, Volume and Issue: 86(9), P. 094401 - 094401

Published: July 25, 2023

Strong laser physics is a research direction that relies on the use of high-power lasers and has led to fascinating achievements ranging from relativistic particle acceleration attosecond science. On other hand, quantum optics been built low photon number sources opened way for groundbreaking discoveries in technology, advancing investigations fundamental tests theory information processing. Despite tremendous progress, until recently these directions have remained disconnected. This because, majority interactions strong-field limit successfully described by semi-classical approximations treating electromagnetic field classically, as there was no need include properties explain observations. The link between strong physics, optics, science developed recent past. Studies based fully quantized conditioning approaches shown intense laser--matter can be used generation controllable entangled non-classical light states. achievement opens vast stemming symbiosis Here, after an introduction fundamentals directions, we report progress description interaction methods states Also, discuss future engineering using fields, potential applications ultrafast

Language: Английский

Citations

32
Nonclassical states of light after high-harmonic generation in semiconductors: A Bloch-based perspective DOI
Javier Rivera-Dean, Philipp Stammer, Andrew S. Maxwell

et al.

Physical review. B./Physical review. B, Journal Year: 2024, Volume and Issue: 109(3)

Published: Jan. 19, 2024

High-harmonic generation (HHG) has emerged as a pivotal process in strong-field physics, yielding extreme ultraviolet radiation and attosecond pulses for wide range of applications. Furthermore, its emergent connection with the field quantum optics revealed potential generating nonclassical states light. Here, we investigate high-harmonic semiconductors under optical perspective while using Bloch-based solid-state description. Through implementation operations based on measurement high-order harmonics, demonstrate light similar to those found when driving atomic systems. These are characterized diverse observables information measures, showing influence electron dynamics their properties. Additionally, analyze dependence features solid characteristics such dephasing time crystal orientation, also assessing sensitivity changes strength. This paper provides insights into HHG sources.

Language: Английский

Citations

14
Light-matter entanglement after above-threshold ionization processes in atoms DOI
Javier Rivera-Dean, Philipp Stammer, Andrew S. Maxwell

et al.

Physical review. A/Physical review, A, Journal Year: 2022, Volume and Issue: 106(6)

Published: Dec. 9, 2022

Light-matter entanglement plays a fundamental role in many applications of quantum information science. Thus, finding processes where it can be observed is an important task. Here, using one-dimensional model, we address this matter by investigating theoretically the between light and electrons generated above-threshold ionization (ATI) process. The study based on backaction ATI process optical state system, its dependence kinetic energy direction emitted photoelectrons. Taking into account dynamics process, demonstrate creation hybrid entangled states. amount has been studied terms entropy entanglement. Additionally, use Wigner function driving field mode to motivate characterization when considering propagating opposite directions.

Language: Английский

Citations

26
Quantum phase transitions in two-dimensional superconductors: a review on recent experimental progress DOI
Ziqiao Wang, Yi Liu, Chengcheng Ji

et al.

Reports on Progress in Physics, Journal Year: 2023, Volume and Issue: 87(1), P. 014502 - 014502

Published: Dec. 12, 2023

Superconductor-insulator/metal transition (SMT) as a paradigm of quantum phase has been research highlight over the last three decades. Benefit from recent developments in fabrication and measurements two-dimensional (2D) superconducting films nanodevices, unprecedented phenomena have revealed transitions 2D superconductors. In this review, we introduce progress on superconductors, focusing Griffiths singularity (QGS) anomalous metal state. Characterized by divergent critical exponent when approaching zero temperature, QGS SMT is discovered ultrathin crystalline Ga subsequently detected various The universality indicates profound influence quenched disorder transitions. Besides, system, whether metallic ground state can exist long-sought mystery. Early experimental studies indicate an intermediate Recently, high-temperature with patterned nanopores, robust (i.e. or Bose metal) detected, featured saturated resistance low temperature regime. Moreover, charge-2equantum oscillations are observed nanopatterned films, indicating bosonic nature ending debate bosons metal. evidences states also reported epitaxial thin exfoliated nanoflakes, well granular composite films. High quality filters used these works to exclude external high frequency noises ultralow measurements. observations superconductors not only reveal prominent role fluctuations dissipations but provide new perspective explore systems.

Language: Английский

Citations

15
High-harmonic generation by a bright squeezed vacuum DOI Creative Commons

Andrei Rasputnyi,

Zhaopin Chen,

Michael Birk

et al.

Nature Physics, Journal Year: 2024, Volume and Issue: 20(12), P. 1960 - 1965

Published: Oct. 2, 2024

Abstract High-harmonic generation has been driving the development of attosecond science and sources. More recently, high-harmonic in solids adopted by other communities as a method to study material properties. However, so far only driven classical light, despite theoretical proposals do with quantum states light. Here we observe non-perturbative macroscopic state bright squeezed vacuum, which generate single spatiotemporal mode. The process vacuum is considerably more efficient high harmonics than light same mean intensity. Due its broad photon-number distribution, covering from 0 2 × 10 13 photons per pulse, strong subcycle electric field fluctuations, gives access free carrier dynamics within much broader range peak intensities accessible

Language: Английский

Citations

6
Ultrafast high-harmonic spectroscopy of solids DOI
Christian Heide, Yuki Kobayashi, Sheikh Rubaiat Ul Haque

et al.

Nature Physics, Journal Year: 2024, Volume and Issue: 20(10), P. 1546 - 1557

Published: Oct. 1, 2024

Language: Английский

Citations

5
Evidence of the Quantum Optical Nature of High-Harmonic Generation DOI Creative Commons
David Theidel, Viviane Cotte, René Sondenheimer

et al.

PRX Quantum, Journal Year: 2024, Volume and Issue: 5(4)

Published: Nov. 5, 2024

High-harmonic generation is a light up-conversion process occurring in strong laser field, leading to coherent bursts of extreme ultrashort broadband radiation [Lewenstein , Phys. Rev. A 2117 (1994)]. As new perspective, we propose that ultrafast strong-field electronic or photonic processes such as high-harmonic can potentially generate nonclassical states well before the decoherence system occurs [Gorlach Nat. Commun. 4598 (2020); Stammer ., Lett. 123603 (2022)]. This could address fundamental challenges quantum technology scalability, decoherence, massively entangled Luca Argenti Michael Chini, 27 (2024)]. Here, report experimental evidence nature harmonic emission several semiconductors excited by femtosecond infrared laser. By investigating single- and double-beam intensity cross-correlation [Loudon, Rep. Prog. 913 (1980)], measure characteristic features single-photon statistics. We observe two-mode squeezing generated radiation, which depends on governs transition from super-Poissonian Poissonian photon The measured violation Cauchy-Schwarz inequality realizes direct test multipartite entanglement [Wasak, 033616 (2014)]. result supported theory multimodal detection Hamiltonian effective modes harmonics be derived [Gonoskov B 125110 (2024); Christ New J. 033027 (2011)]. With this work, show experimentally bosonic platform intrinsically produces with unique multimode squeezing. source operates at room temperature, using standard commercial fiber laser, opening up routes for industry, optical computing, communication, imaging. Published American Physical Society 2024

Language: Английский

Citations

5
Following the Nonthermal Phase Transition in Niobium Dioxide by Time-Resolved Harmonic Spectroscopy DOI Creative Commons
Zan Nie,

Leo Guery,

Eduardo B. Molinero

et al.

Physical Review Letters, Journal Year: 2023, Volume and Issue: 131(24)

Published: Dec. 11, 2023

Photoinduced phase transitions in correlated materials promise diverse applications from ultrafast switches to optoelectronics. Resolving those and possible metastable phases temporally are key enablers for these applications, but challenge existing experimental approaches. Extreme nonlinear optics can help probe changes, as higher-order nonlinearities have higher sensitivity temporal resolution band structure lattice deformations. Here the transition semiconducting metallic polycrystalline thin-film NbO_{2} is investigated by time-resolved harmonic spectroscopy. The emission strength of all orders shows a steplike suppression when excitation fluence exceeds threshold (∼11-12 mJ/cm^{2}), below required thermal transition-a signature nonthermal emergence within 100±20 fs. This observation backed full ab initio simulations well 1D chain model high-harmonic generation both phases. Our results demonstrate femtosecond probing dynamics solids.

Language: Английский

Citations

11