Article
Chemistry, Physical
Jack A. Logan, Aaron Michelson, Ajith Pattammattel, Hanfei Yan, Oleg Gang, Alexei V. Tkachenko
Summary: The bond-orientational order in DNA-assembled nanoparticles lattices is explored using Symmetry-specific Bond Order Parameters (SymBOPs). This method proves to be more sensitive in analyzing local order than traditional scalar BOPs, allowing for the identification of coherent domains at the single bond level. The SymBOP analysis is applied to experiments on DNA-frame-based assembly of nanoparticle lattices, successfully detecting coherent crystalline domains with different orientations and topological defects. The results highlight the versatility and robustness of SymBOPs in characterizing ordering phenomena.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Physics, Multidisciplinary
Senne Van Loon, Jacques Tempere, Hadrien Kurkjian
Summary: This study investigates the fermionic quasiparticle spectrum in a zero-temperature superfluid Fermi gas and how it is affected by different disintegration processes. In addition to the disintegration by emission of a collective boson, the study also considers disintegration events where three quasiparticles are emitted. It is found that both disintegration processes are described by a t-matrix self-energy and that the quasiparticle spectrum is heavily distorted near the 1 -> 3 disintegration threshold at strong coupling.
Article
Physics, Multidisciplinary
G. Del Pace, K. Xhani, A. Muzi Falconi, M. Fedrizzi, N. Grani, D. Hernandez Rajkov, M. Inguscio, F. Scazza, W. J. Kwon, G. Roati
Summary: Researchers have successfully realized supercurrents in homogeneous, tunable fermionic rings and achieved rapid control over quantized persistent currents using a phase-imprinting technique. They found that under certain conditions, quantized currents dissipate via vortex emission, which is significant for atomtronics applications.
Article
Chemistry, Multidisciplinary
Ace Christian F. Serraon, Julie Anne D. Del Rosario, Po-Ya Abel Chuang, Meng Nan Chong, Yoshitada Morikawa, Allan Abraham B. Padama, Joey D. Ocon
Summary: Density functional theory was used to investigate the effects of doping alkaline earth metal atoms on graphene, revealing predominantly ionic bonding and changes in electronic and magnetic properties, potentially important for spintronic and other electronic device applications. Different characteristics were observed for beryllium doping compared to magnesium, calcium, and strontium doping, leading to varied behaviors such as non-spin-polarized p-type semiconductor and Dirac half-metal-like behavior.
Article
Automation & Control Systems
Jia Liu, Tiantian Xu, Xinyu Wu
Summary: Magnetic micro/mini-swimmers have great potential in biomedical research and have gained broad attention. The automatic control methods of magnetic micro/mini-swimmers, such as artificial intelligence methods, have been the focus of recent research. However, their autonomous manipulation remains challenging due to disturbances from the external environment and model uncertainties.
IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Environmental
Julio E. Sosa, Ruben Santiago, Andres E. Redondo, Jocasta Avila, Luiz F. Lepre, Margarida Costa Gomes, Joao M. M. Araujo, Jose Palomar, Ana B. Pereiro
Summary: In recent years, the global concern has been on combating climate change and mitigating the impact of F-gases on the atmosphere. The development of technologies that can efficiently separate and recycle HFCs is a priority. This study used the COSMO-RS method to analyze the solute-solvent interactions and determine the properties of R-32 and R-134a in over 600 ionic liquids. Three high-performing ionic liquids were selected and their F-gas absorption capacities were measured and compared with the COSMO-RS predictions. The results showed good agreement, indicating the potential of these ionic liquids for industrial applications.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Maciej Czajkowski, Joanna Feder-Kubis, Bartlomiej Potaniec, Lukasz Duda, Joanna Cybinska
Summary: Mixtures of nematic liquid crystals with chiral ionic liquids have potential applications as active materials for electrically driven broadband mirrors. In this study, the miscibility of five nematic liquid crystal hosts with twenty three ionic liquids, including chiral ones, was investigated. Phase diagrams of mixtures with twisted nematic phase were determined. The occurrence of chemical reactions and the selectivity of the reactions with different liquid crystal hosts were observed.
Article
Quantum Science & Technology
Mikhail Mamaev, Thomas Bilitewski, Bhuvanesh Sundar, Ana Maria Rey
Summary: We theoretically study the dynamics of n-level spin-orbit coupled alkaline-earth fermionic atoms with SU(n) symmetric interactions. Laser driving and the use of a synthetic dimension allow us to observe the development of complex chiral current patterns and a series of nontrivial prethermal plateaus caused by resonant processes. These findings provide insights into the behavior of strongly interacting systems.
Article
Chemistry, Physical
Jaspreet Singh, Anuroopa Behatha, Saba Kharabadze, A. N. Kolmogorov, G. Vaitheeswaran, V. Kanchana
Summary: This study focuses on the crystal structure ground states and topological properties of MnRhP. By comparing and analyzing different phases, non-trivial topological features are discovered in this material, and a method of experimental verification is proposed.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Physics, Multidisciplinary
J. B. Hauck, C. Honerkamp, D. M. Kennes
Summary: The field of quantum simulations in ultra-cold atomic gases has been successful, but there is a lack of systematic study on trap potential and finite size effects. Lower temperatures are needed in experiments, and system size and trap potential shape play a crucial role in simulating emergent phases of matter.
NEW JOURNAL OF PHYSICS
(2021)
Review
Chemistry, Physical
Evgeny P. Pozhidaev, Sofia I. Torgova, Vadim A. Barbashov
Summary: The origin of ferroelectricity in smectic liquid crystals is attributed to the chirality of their molecules. The chirality leads to the helical structure of molecular axes, which can undergo deformations under electric fields and result in specific electro-optical effects. These effects have been utilized in the development of next-generation displays and photonic devices.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Multidisciplinary Sciences
Igor Rzeplinski, Chrystele Sanloup, Eric Gilabert, Denis Horlait
Summary: Our understanding of atmospheric formation relies on noble gases, particularly xenon, as a tracer. However, the origin of atmospheric depletion in xenon on Earth and Mars has long been a mystery. Through experiments, we found that feldspar and olivine samples under high pressure and temperature conditions enriched in heavy xenon isotopes, suggesting that xenon can be trapped and preferentially retained during planetary formation events. We propose a scenario involving multiple magma ocean stages and atmospheric loss to explain the missing xenon problem.
Article
Chemistry, Multidisciplinary
Wongi Park, Minyong Yang, Hyewon Park, Joanna M. Wolska, Hyungju Ahn, Tae Joo Shin, Damian Pociecha, Ewa Gorecka, Dong Ki Yoon
Summary: The polymorphism in the helical nanofilament (HNF, B-4) liquid-crystalline phase depends on the fabrication methods, such as UV-driven formation and template-assisted self-assembly in the nanoconfined geometry. Different helical structures were obtained, including twisted-ribbon and cylindrical-ribbon polymorphs, showing the capability for fine control of the helical structures for potential chiro-optical applications. SEM and grazing-incidence X-ray diffraction with synchrotron radiation were used to directly observe the detailed structures.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Physical
E. Cruickshank, K. Anderson, J. M. D. Storey, C. T. Imrie, E. Gorecka, D. Pociecha, A. Makal, M. M. Majewska
Summary: This study reports the synthesis and characterization of a series of bent odd-membered mesogenic dimers. These materials exhibit a tendency to form helical structures and we report three chiral phases in a single homologous series for the first time.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Mengqi Li, Honglong Hu, Binghui Liu, Xuan Liu, Zhi-Gang Zheng, He Tian, Wei-Hong Zhu
Summary: This study introduces an additional degree-of-freedom in a photo-modulated soft helix, generating an unprecedented inhomogeneous helical pitch length with light-reconfiguring property. The use of a absorbance photo-modulator BTA-C5 enables the reconfiguration of helical pitch from homogeneous to inhomogeneous, providing a breakthrough for multi-freedom control in soft materials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Physics, Multidisciplinary
Ludovico Tesser, Bibek Bhandari, Paolo Andrea Erdman, Elisabetta Paladino, Rosario Fazio, Fabio Taddei
Summary: This study investigates the phenomenon of heat rectification through quantum dots in the Coulomb blockade regime. The analysis considers different configurations and parameters, and finds that cotunneling contributions can enhance rectification in certain cases, leading to perfect non-local rectification under specific parameters.
NEW JOURNAL OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
Michal Hajdusek, Parvinder Solanki, Rosario Fazio, Sai Vinjanampathy
Summary: This study introduces the concept of seeding of crystallization in time by studying the dynamics of an ensemble of coupled continuous time crystals. It demonstrates that a single subsystem in a broken-symmetry phase can induce time-translation symmetry breaking across the entire ensemble. The seeding effect is observed for both coherent and dissipative coupling, as well as for a broad range of parameter regimes.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Jiahui Li, Rosario Fazio, Stefano Chesi
Summary: This paper studies the semiclassical limit of the anisotropic two-photon Dicke model with a dissipative bosonic field and describes its rich nonlinear dynamics, including fixed points, limit cycles, chaotic dynamics, and phase coexistence.
NEW JOURNAL OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
G. De Filippis, A. de Candia, G. Di Bello, C. A. Perroni, L. M. Cangemi, A. Nocera, M. Sassetti, R. Fazio, V. Cataudella
Summary: Using advanced theoretical methods, we investigate the equilibrium properties and relaxation features of the dissipative quantum Rabi model, revealing a Beretzinski-Kosterlitz-Thouless quantum phase transition and the signatures of quantum phase transition in the time and frequency domains. We propose a realization of this model by coupling a flux qubit and a damped LC oscillator.
PHYSICAL REVIEW LETTERS
(2023)
Article
Engineering, Electrical & Electronic
H. G. Ahmad, V. Brosco, A. Miano, L. Di Palma, M. Arzeo, R. Satariano, R. Ferraiuolo, P. Lucignano, A. Vettoliere, C. Granata, L. Parlato, G. Ausanio, D. Montemurro, G. P. Pepe, R. Fazio, F. Tafuri, D. Massarotti
Summary: We demonstrate that split-transmon qubits based on tunnel ferromagnetic Josephson junctions provide an ideal platform to study noise fluctuations in ferromagnetic Josephson devices. By considering the transport properties of measured Al-based tunnel SFS Josephson junctions, a theoretical study is conducted to investigate the competition between intrinsic magnetization fluctuations in the barrier and quasiparticle dissipation, thus providing specific operation regimes to identify and disentangle the two noise sources, depending on the peculiar properties of the F layer and F/S interface.
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2023)
Article
Physics, Applied
D. Massarotti, H. G. Ahmad, R. Satariano, R. Ferraiuolo, L. Di Palma, P. Mastrovito, G. Serpico, A. Levochkina, R. Caruso, A. Miano, M. Arzeo, G. Ausanio, C. Granata, P. Lucignano, D. Montemurro, L. Parlato, A. Vettoliere, R. Fazio, O. Mukhanov, G. P. Pepe, F. Tafuri
Summary: We discuss the capabilities and potential of ferromagnetic Josephson junctions (JJs) in various layouts and configurations, as well as their integration in superconducting classical and quantum electronics. The use of ferromagnetic JJs in quantum circuits has been demonstrated through experiments and electrodynamic characterization. The achievements in this field have paved the way for the implementation of Al tunnel-ferromagnetic JJs in superconducting quantum circuits and the development of a novel type of qubit based on ferromagnetic JJs.
LOW TEMPERATURE PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Fabio Taddei, Rosario Fazio
Summary: In this study, bounds to the thermodynamic uncertainty relations in two-terminal systems with broken time reversal symmetry are derived. The bounds are found to be different for charge and heat currents, depending on the system details and the ratio of applied voltage to temperature difference. The bounds are then calculated for a hybrid coherent superconducting system and the case of an Andreev interferometer is explored.
Article
Materials Science, Multidisciplinary
C. A. Perroni, A. De Canada, V. Cataudella, R. Faizo, G. De Filippis
Summary: This study shows that changing the dissipative environment can alter the characteristics of continuous quantum phase transitions and induce first-order transitions in ferromagnetic spin chains. By coupling the spins to local quantum boson baths, the transition from the second to the first order can be driven even at low dissipation strength. The effective magnetic field induced by dissipation can switch the sign of magnetization and has implications for quantum sensing.
Article
Materials Science, Multidisciplinary
Antonio D'Abbruzzo, Vincenzo Alba, Davide Rossini
Summary: In this study, we investigated the quantum information spreading in one-dimensional free-fermion systems with localized thermal baths using a nonlocal Lindblad master equation. The results showed that the singularity of the free-fermion dispersion leads to singular behavior of the steady-state mutual information as a function of system parameters. By analyzing the logarithmic scaling, a prefactor was derived, which depends on the parameters of the baths and acts as an effective central charge.
Article
Materials Science, Multidisciplinary
Gianluca Passarelli, Procolo Lucignano, Rosario Fazio, Angelo Russomanno
Summary: This study relaxes the conditions for the formation of time crystals, showing that time-translation-symmetry-breaking collective oscillations still persist in systems without spin symmetry. By engineering a specific Lindbladian model, a rich phase diagram, including the time-crystal phase and different types of transitions, is revealed. The magnetization dynamics are also studied in the mean-field approximation.
Article
Physics, Fluids & Plasmas
E. Costa, G. Scriva, R. Fazio, S. Pilati
Summary: By using a convolutional architecture with an interchannel averaging layer, the instabilities that occur when using deep neural networks as regression models can be avoided.
Article
Mechanics
Alessio Franchi, Davide Rossini, Ettore Vicari
Summary: In this study, we investigate the unitary dynamics of a quantum sunburst spin model. The results show that near the quantum transitions of the Ising ring, there are peculiar scaling regimes that depend on the way in which the large-size limit is taken. Additionally, the role of the nearest-neighbor coupling between the external qubits is also addressed.
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
(2022)
Article
Physics, Fluids & Plasmas
Alessio Franchi, Davide Rossini, Ettore Vicari
Summary: In this study, we investigate the ground-state properties of a quantum sunburst model, which consists of a quantum Ising spin ring and a set of ancillary isolated qubits. We explore the large-size limit in different ways and observe different physical regimes and behaviors depending on the parameters.
Article
Physics, Fluids & Plasmas
Alessio Franchi, Davide Rossini, Ettore Vicari
Summary: In this study, we investigate the effects of symmetry-breaking defects on the continuous quantum transitions (CQTs) in homogeneous systems using renormalization-group (RG) and finite-size scaling frameworks. By analyzing the one-dimensional quantum Ising models with defects that break the global Z2 symmetry, we demonstrate the significant changes in ground-state properties in critical crossover regimes driven by these defects. The fidelity susceptibility shows a power-law divergence within the critical crossover regime, and we support the theoretical arguments with numerical results.
Article
Materials Science, Multidisciplinary
Giulia Piccitto, Angelo Russomanno, Davide Rossini
Summary: This paper investigates the dynamics of entanglement in the quantum Ising chain with dephasing dissipation using two different unravelings. The results show that the entanglement behavior differs for different unravelings of the same Lindblad equation, contradicting the predictions of a non-Hermitian Hamiltonian evolution.
