Article
Physics, Multidisciplinary
Tommaso Comparin, Fabio Mezzacapo, Martin Robert-de-Saint-Vincen, Tommaso Roscilde
Summary: This article discusses the property of spontaneous symmetry breaking in quantum spin models and demonstrates the realization of spin squeezing through adiabatic processes, providing possibilities for entanglement detection and metrological uses of quantum states.
PHYSICAL REVIEW LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Agostino Migliore, Anna Napoli, Antonino Messina
Summary: This study explores a parity effect that arises from the interaction between atoms and radiation in confined space, explaining the physical basis of this phenomenon through quantum correlations and entanglement. The research shows that even a single photon addition/removal can dramatically impact the system behavior, suggesting potential applications in optoelectronics and quantum information processing.
RESULTS IN PHYSICS
(2021)
Article
Physics, Multidisciplinary
Bharath Kannan, Aziza Almanakly, Youngkyu Sung, Agustin Di Paolo, David A. A. Rower, Jochen Braumueller, Alexander Melville, Bethany M. M. Niedzielski, Amir Karamlou, Kyle Serniak, Antti Vepsaelaeinen, Mollie E. E. Schwartz, Jonilyn L. L. Yoder, Roni Winik, Joel I-Jan Wang, Terry P. P. Orlando, Simon Gustavsson, Jeffrey A. A. Grover, William D. D. Oliver
Summary: Routing quantum information between non-local computational nodes is essential for scalable networks of quantum processors. Photon propagation and resonant coupling are commonly used for quantum information transfer, but they have limitations in terms of fidelity and bidirectionality. In this study, we demonstrate high-fidelity, on-demand, directional microwave photon emission by creating a chiral microwave waveguide using an artificial molecule.
Article
Physics, Particles & Fields
Shagun Kaushal
Summary: This article investigates the Schwinger effect for fermions with background electric and magnetic fields, discussing the relationship between local and global modes and the spectra of created particles. It also briefly discusses the implications of these results in the context of quantum entanglement.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Optics
I. A. Ivanov, Kyung Taec Kim
Summary: This study presents the results of relativistic calculations on even-order harmonic generation from different atomic targets. The even-order harmonics are generated due to relativistic nondipole effects. By using an approach based on the solution of the time-dependent Dirac equation, the relativistic effects are taken into account. The spectra of the nondipole even harmonics are qualitatively similar to the spectra of the dipole harmonics obeying the same classical cutoff rule. However, the temporal dynamics of the formation of the nondipole harmonics are distinctly different from the process of dipole harmonics formation. The emission of even-order harmonics is strongly suppressed at the beginning of the laser pulse, and the emission times of the nondipole harmonics are shifted with respect to the bursts of the dipole emission. These features can be partly explained by a simple modification of the classical three-step model that considers the selection rules governing the emission of harmonic photons.
Article
Optics
Shailendra Kumar Singh
Summary: This study investigates the behavior of a semiconductor laser cavity with a single quantum dot as the gain medium and optical feedback under the Markovian approximation. Coupled operator equations for the model Hamiltonian are obtained using cavity-QED formalism, revealing no finite steady state solutions. Exact numerical computations are conducted to analyze the temporal dynamics of the mean excitation number of the laser cavity mode under high feedback coupling regime, studying photon correlations to identify laser parameters and coupling strength for nonclassical sub-Poissonian photon statistics. The findings contribute to coherent control of photon statistics and correlations in semiconductor lasers with optical feedback.
APPLIED PHYSICS B-LASERS AND OPTICS
(2021)
Article
Physics, Multidisciplinary
A. B. A. Mohamed, H. A. Hessian
Summary: This paper explores the population inversion and entanglement dynamics in a Lambda-qutrit coupled with a coherent cavity field through multi-quanta processes, based on the intrinsic decoherence model. The effects of initial cavity states, detuning, and decoherence are investigated to control energy transfer and entanglement induced by the qutrit-cavity interaction. Various factors such as qutrit-cavity detuning, coherent intensity, and initial cavity field nonclassicality play a crucial role in improving the generated entanglement dynamics.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
Article
Materials Science, Ceramics
L. A. Ma, Y. B. Chen, X. Y. Ye, L. Sun, Z. H. Wei, L. Huang, H. X. Chen, Q. T. Wang, E. G. Chen
Summary: ZnO nanorod arrays were grown on carbon cloth using a hydrothermal method, followed by deposition of titanium nitride nanoparticles. The field emission performance of ZnO nanorods was found to depend on the thickness of the TiN coating, with ZnO/TiN240 core-shell arrays exhibiting improved properties.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Multidisciplinary
Lukas Pausch, Edoardo G. Carnio, Alberto Rodriguez, Andreas Buchleitner
Summary: In this study, the chaotic phase of the Bose-Hubbard Hamiltonian is identified through the energy-resolved correlation between spectral features and structural changes of the associated eigenstates, as revealed by their generalized fractal dimensions. The eigenvectors are found to become ergodic in the thermodynamic limit, in the configuration space Fock basis, with random matrix theory providing a remarkable description of their typical structure. However, as the Hilbert space dimension grows, the distributions of the generalized fractal dimensions show increasing distinguishability from random matrix theory.
PHYSICAL REVIEW LETTERS
(2021)
Article
Optics
Henk F. Arnoldus
Summary: This study examines the induction of electric dipole moments of particles near interfaces under laser irradiation, considering the impact of emitted radiation on the source. By introducing two resolvent functions, resonance features due to the back-action mechanism were discovered. The analysis revealed the presence of resonance peaks in the induced dipole moment, depending on the parameters considered.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2021)
Article
Materials Science, Multidisciplinary
Mariam Algarni, Kamal Berrada, Sayed Abdel-Khalek, Hichem Eleuch
Summary: In this paper, we extend the Jaynes-Cummings model to a six-level atom (LA) system with a quantized field described by an ordinary coherent state or a superposition state. We investigate the dynamics of population, coherence, and quantum entanglement in terms of system parameters. We analyze the time variation of the quantifiers with and without time-varying coupling and compare them. Moreover, we demonstrate how the quantifiers can be controlled based on system parameters. The results show that the proposed system exhibits interesting quantum coherence and entanglement, making it a promising candidate for quantum optics and information schemes.
RESULTS IN PHYSICS
(2023)
Article
Physics, Multidisciplinary
A. Flegel, M. Frolov
Summary: This study analyzes the adiabatic approximation for non-perturbative interaction between an atomic system and an intense low-frequency laser field. It is found that the commonly used adiabatic ansatz exceeds the required accuracy level and needs further theoretical revision. The non-analyticity in the field strength of the DC-based Green's and wave functions leads to violation of adiabaticity constraints and the appearance of rapidly oscillating components in transition matrix elements. An improved adiabatic approach is proposed, utilizing the analytical parts in the DC-based Green's and wave functions. The revised adiabatic approach is illustrated by analyzing atomic polarizability in a two-component laser field with an intense infrared and perturbative extreme ultraviolet components within the zero-range potential model.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2023)
Article
Chemistry, Multidisciplinary
Yang Li, Hang Hu, Ahmed Farag, Thomas Feeney, Isabel Allegro, Uli Lemmer, Ulrich W. Paetzold, Ian A. Howard
Summary: Perovskite gain materials can sustain continuous-wave lasing at room temperature. However, electrical stimulation supplementing optical has reduced gain performance in the past. In this study, researchers found that the addition of an electric field can turn on/off the amplified spontaneous emission (ASE) in a CsPbBr3 perovskite light-emitting diode (LED), and a positive bias voltage leads to a reduction in the optical ASE threshold.
Article
Engineering, Electrical & Electronic
Antonio Roberto Panicali, Celio Fonseca Barbosa
Summary: This paper analyzes the impact of integration path of electric field on grounding impedance measurements, showing that it is insignificant for low frequencies but becomes significant for high frequencies due to non-conservative electric fields. The study highlights the importance of considering factors like electrode length and propagation effects on measuring wires when defining high-frequency grounding impedance.
ELECTRIC POWER SYSTEMS RESEARCH
(2021)
Article
Physics, Multidisciplinary
Eric Brunner, Lukas Pausch, Edoardo G. Carnio, Gabriel Dufour, Alberto Rodriguez, Andreas Buchleitner
Summary: We reveal the existence of many-body interference in the dynamical regimes of the Bose-Hubbard model. The temporal fluctuations of few-body observables are significantly enhanced at the onset of quantum chaos due to the increased indistinguishability of particles. By analyzing the exchange symmetries of partially distinguishable particles, we demonstrate that this enhancement is the manifestation of the coherence of the initial state in the eigenbasis.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Multidisciplinary
Aaron M. Jones, Hongyi Yu, John R. Schaibley, Jiaqiang Yan, David G. Mandrus, Takashi Taniguchi, Kenji Watanabe, Hanan Dery, Wang Yao, Xiaodong Xu
Article
Chemistry, Multidisciplinary
Genevieve Clark, John R. Schaibley, Jason Ross, Takashi Taniguchi, Kenji Watanabe, Joshua R. Hendrickson, Shin Mou, Wang Yao, Xiaodong Xu
Article
Multidisciplinary Sciences
Pasqual Rivera, Kyle L. Seyler, Hongyi Yu, John R. Schaibley, Jiaqiang Yan, David G. Mandrus, Wang Yao, Xiaodong Xu
Article
Multidisciplinary Sciences
John R. Schaibley, Pasqual Rivera, Hongyi Yu, Kyle L. Seyler, Jiaqiang Yan, David G. Mandrus, Takashi Taniguchi, Kenji Watanabe, Wang Yao, Xiaodong Xu
NATURE COMMUNICATIONS
(2016)
Review
Nanoscience & Nanotechnology
John R. Schaibley, Hongyi Yu, Genevieve Clark, Pasqual Rivera, Jason S. Ross, Kyle L. Seyler, Wang Yao, Xiaodong Xu
NATURE REVIEWS MATERIALS
(2016)
Article
Chemistry, Multidisciplinary
Jason S. Ross, Pasqual Rivera, John Schaibley, Eric Lee-Wong, Hongyi Yu, Takashi Taniguchi, Kenji Watanabe, Jiaqiang Yan, David Mandrus, David Cobden, Wang Yao, Xiaodong Xu
Article
Chemistry, Multidisciplinary
Hossein Taghinejad, Daniel A. Rehn, Christine Muccianti, Ali A. Eftekhar, Mengkun Tian, Tianren Fan, Xian Zhang, Yuze Meng, Yanwen Chen, Tran-Vinh Nguyen, Su-fei Shi, Pulickel M. Ajayan, John Schaibley, Evan J. Reed, Ali Adibi
Article
Multidisciplinary Sciences
Matthew Klein, Bekele H. Badada, Rolf Binder, Adam Alfrey, Max McKie, Michael R. Koehler, David G. Mandrus, Takashi Taniguchi, Kenji Watanabe, Brian J. LeRoy, John R. Schaibley
NATURE COMMUNICATIONS
(2019)
Article
Chemistry, Multidisciplinary
Daniel N. Shanks, Fateme Mahdikhanysarvejahany, Christine Muccianti, Adam Alfrey, Michael R. Koehler, David G. Mandrus, Takashi Taniguchi, Kenji Watanabe, Hongyi Yu, Brian J. LeRoy, John R. Schaibley
Summary: The research team used a nanopatterned graphene gate to create a sharply varying electric field near a MoSe2-WSe2 heterostructure, forming a trap capable of capturing single excitons. This method demonstrates the potential for deterministic placement and control of IXs, providing new insights for scalable quantum technologies.
Article
Materials Science, Multidisciplinary
Feng Lin, Aamir Nasir Quraishy, Tian Tong, Runjia Li, Guang Yang, Mohammadjavad Mohebinia, Yi Qiu, Talari Vishal, Junyi Zhao, Wei Zhang, Hong Zhong, Hang Zhang, Zhongchen Chen, Chaofu Zhou, Xin Tong, Peng Yu, Jonathan Hu, Suchuan Dong, Dong Liu, Zhiming Wang, John R. Schaibley, Jiming Bao
Summary: The study highlights how laser-induced fountain phenomena can cause surface deformation of liquids, challenging traditional views of Marangoni convection. The dynamic competition between outgoing Marangoni convection and upward recirculation flow is shown to be responsible for the unique behavior of laser fountain.
MATERIALS TODAY PHYSICS
(2021)
Article
Multidisciplinary Sciences
Matthew Klein, Rolf Binder, Michael R. Koehler, David G. Mandrus, Takashi Taniguchi, Kenji Watanabe, John R. Schaibley
Summary: This study demonstrates a 1300-fold reduction of the SPP group velocity using coupled exciton-surface plasmon polaritons in a monolayer WSe2 structure. The findings provide a new approach for on-chip actively switched delay lines and optical buffers, which are important for telecommunications and quantum photonics applications.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Fateme Mahdikhanysarvejahany, Daniel N. Shanks, Matthew Klein, Qian Wang, Michael R. Koehler, David G. Mandrus, Takashi Taniguchi, Kenji Watanabe, Oliver L. A. Monti, Brian J. LeRoy, John R. Schaibley
Summary: The spectrally narrow photoluminescence lines occurring in transition metal dichalcogenides (TMD) heterostructures at low temperature are not solely caused by the moire potential, as they can still appear even when the potential is suppressed by inserting an hBN spacer between the TMD layers.
NATURE COMMUNICATIONS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
John Schaibley
ULTRAFAST PHENOMENA AND NANOPHOTONICS XXI
(2017)
Article
Nanoscience & Nanotechnology
Colin M. Chow, Hongyi Yu, Aaron M. Jones, John R. Schaibley, Michael Koehler, David G. Mandrus, R. Merlin, Wang Yao, Xiaodong Xu
NPJ 2D MATERIALS AND APPLICATIONS
(2017)
Article
Materials Science, Multidisciplinary
Akshay Singh, Galan Moody, Kha Tran, Marie E. Scott, Vincent Overbeck, Gunnar Berghaeuser, John Schaibley, Edward J. Seifert, Dennis Pleskot, Nathaniel M. Gabor, Jiaqiang Yan, David G. Mandrus, Marten Richter, Ermin Malic, Xiaodong Xu, Xiaoqin Li
