Article
Physics, Multidisciplinary
S. Baryshev, A. Zasedatelev, H. Sigurdsson, I Gnusov, J. D. Topfer, A. Askitopoulos, P. G. Lagoudakis
Summary: In this study, we conducted full polarization tomography on photon correlations in a spinor exciton-polariton condensate. Our measurements demonstrate the different forms of condensate pseudospin mean-field dynamics and their intrinsic relation to the condensate photon statistics.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Karol Gietka, Farokh Mivehvar, Thomas Busch
Summary: A novel composite light-matter magnetometer is proposed, using a multi-component Bose-Einstein condensate coupled to two distinct electromagnetic modes of a linear cavity for magnetic field measurement. The sensitivity of this magnetometer exhibits Heisenberg-like scaling with respect to the atom number, with a calculated lower bound for sensitivity at the order of fT (root Hz(-1))(-1) -pT (root Hz)(-1) for a condensate of 10(4) atoms with coherence times on the order of several ms under state-of-the-art experimental parameters.
NEW JOURNAL OF PHYSICS
(2021)
Article
Multidisciplinary Sciences
Juan Carlos Sandoval-Santana, Roberto Zamora-Zamora, Rosario Paredes, Victor Romero-Rochin
Summary: This study focuses on decoherence and recurrences in the dynamics of the one-body density matrix of an F=1 spinor Bose-Einstein condensate, revealing accurate analytical expressions for the time dependence of coherent states. The research also uncovers the relationship between decoherence and recurrence times with the number of atoms and strength parameters, showing significant differences based on the strength of spin-spin interactions.
Article
Optics
M. Miskeen Khan, H. Tercas, J. T. Mendonca, J. Wehr, C. Charalambous, M. Lewenstein, M. A. Garcia-March
Summary: The study investigates the quantum motion of an impurity atom in a Bose-Einstein condensate in arbitrary dimensions, showing superdiffusive behavior, dimension-dependent average energy, and non-Markovianity of particle motion. Trapped impurity atoms exhibit stronger position squeezing in lower dimensions.
Article
Multidisciplinary Sciences
Silvana Palacios Alvarez, Pau Gomez, Simon Coop, Roberto Zamora-Zamora, Chiara Mazzinghi, Morgan W. Mitchell
Summary: We present a magnetic sensor with extremely high energy resolution, applied in the detection of Rb-87 single-domain spinor Bose-Einstein condensates. By utilizing nondestructive Faraday rotation probing, we have achieved a low-frequency magnetic sensitivity of 72(8) fT, and measured the volume, spin coherence time, and readout noise of the condensate experimentally.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Physics, Multidisciplinary
Li Tian, Ningxuan Zheng, Jun Jian, Wenliang Liu, Jizhou Wu, Yuqing Li, Yongming Fu, Peng Li, Vladimir Sovkov, Jie Ma, Liantuan Xiao, Suotang Jia
Summary: We conducted a research on spin currents in a Na-23 spinor Bose-Einstein condensate (BEC) by applying a magnetic field gradient. The spin current was successfully induced by the spin-dependent force generated by the magnetic field gradient. We studied the dynamics of the spin components under the influence of the magnetic force. This study holds promise for generating longer spin coherence and enhancing the sensitivity of spin-mixing interferometry in a spinor BEC.
Article
Physics, Multidisciplinary
Timon A. Hilker, Lena H. Dogra, Christoph Eigen, Robert P. Smith, Zoran Hadzibabic
Summary: The two sounds in a highly compressible fluid are investigated using an ultracold Bose gas. The results show that only one sound persists at different temperatures, which is consistent with the hydrodynamic theory.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Chunyu Jia, Rukuan Wu, Ying Hu, Wu-Ming Liu, Zhaoxin Liang
Summary: The magnetic soliton is a topological excitation that can appear in a non-equilibrium framework, even with strong spin anisotropic interactions. This unconventional soliton formation may be due to a dissipation-enabled mechanism, offering new possibilities for applications in opto-spintronics.
FRONTIERS IN PHYSICS
(2021)
Article
Multidisciplinary Sciences
Mario H. Figlioli Donato, Sergio R. Muniz
Summary: In this study, an intriguing effect caused by a thin finite barrier in a quasi-one-dimensional toroidal spinor Bose-Einstein condensate (BEC) is explored, revealing a Josephson-like current that can be used to probe the spinor symmetry solely through measurements of the superfluid current.
Article
Optics
A. D. Garcia-Orozco, L. Madeira, M. A. Moreno-Armijos, A. R. Fritsch, P. E. S. Tavares, P. C. M. Castilho, A. Cidrim, G. Roati, V. S. Bagnato
Summary: We studied the emergence of universal scaling in the time-evolving momentum distribution of a harmonically trapped three-dimensional Bose-Einstein condensate, which was parametrically driven to a turbulent state. We found that the out-of-equilibrium dynamics post excitation can be described by a single function due to nearby nonthermal fixed points. The observed behavior connects the dynamics of a quantum turbulent state to several far-from-equilibrium phenomena.
Article
Physics, Multidisciplinary
Nathan M. Myers, Francisco J. Pena, Oscar Negrete, Patricio Vargas, Gabriele De Chiara, Sebastian Deffner
Summary: The study shows that using a Bose gas as the working medium, the engine performs best in the BEC phase state, with enhanced power output and higher efficiency at maximum power.
NEW JOURNAL OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
Sheng-Chang Li
Summary: This paper theoretically studies the tunneling time of a wave packet of Bose-condensed atoms passing through a square barrier. The authors find that the tunneling time shows different scaling laws in different energy regimes. For negative incident energy, the tunneling time decreases rapidly with decreasing incident velocity. In contrast, for positive incident energy smaller than the barrier height, the tunneling time increases slowly and then reaches a maximum, consistent with experimental results from Larmor clock experiments. The effect of barrier width on the maximum tunneling time, related to the uncertainty principle, is also discussed.
NEW JOURNAL OF PHYSICS
(2022)
Article
Multidisciplinary Sciences
Mengjie Wei, Wouter Verstraelen, Konstantinos Orfanakis, Arvydas Ruseckas, Timothy C. H. Liew, Ifor D. W. Samuel, Graham A. Turnbull, Hamid Ohadi
Summary: The authors demonstrate the on-the-fly reconfigurable optical trapping of organic polariton condensates, which are delocalized over a macroscopic distance from the excitation region. This study holds great potential for future research on polaritonic lattice physics.
NATURE COMMUNICATIONS
(2022)
Article
Mathematics, Applied
Luis E. Young-S, S. K. Adhikari
Summary: We demonstrate the formation of mini droplets, mega droplets, and stripe patterns in a dipolar 164Dy condensate using an improved mean-field model. The study shows the formation of mini droplets for small atom numbers, and the formation of mega droplets containing a large number of atoms along with a stripe pattern as the atom number increases.
PHYSICA D-NONLINEAR PHENOMENA
(2023)
Article
Mathematics, Applied
Pavel A. Andreev
Summary: Traditional quantum hydrodynamics of BECs is limited by continuity equations and Euler equations. The quantum Bohm potential includes a nontrivial part that evolves under quantum fluctuations. In dipolar BECs, the long-range dipole-dipole interaction contributes to quantum fluctuations, leading to the existence of the second wave solution and introducing instability in BECs.
Article
Physics, Multidisciplinary
Bo Song, Shovan Dutta, Shaurya Bhave, Jr-Chiun Yu, Edward Carter, Nigel Cooper, Ulrich Schneider
Summary: This study demonstrates a strongly correlated driven many-body system with a transition that can be tuned from continuous to discontinuous. By resonantly shaking a one-dimensional optical lattice, the system undergoes a transition from a Mott insulator to a superfluid, with a discontinuous transition for weak shaking and a continuous transition for strong shaking.
Article
Multidisciplinary Sciences
Yuen Gao, Natalia Duque-Wilckens, Mohammad B. Aljazi, Adam J. Moeser, George I. Mias, Alfred J. Robison, Yi Zhang, Jin He
Summary: Recent clinical studies have shown that chromosomal 12q24.31 microdeletions are associated with autism spectrum disorder (ASD) and intellectual disability (ID). This study reveals that the gene Kdm2b, located in the chromosomal region 12q24.31, plays a critical role in maintaining neural stem cells in the mouse brain. Additionally, the Kdm2b mutation is found to induce ASD/ID-like behavioral and memory deficits.
Article
Physics, Multidisciplinary
Andrew A. Allocca, Nigel R. Cooper
Summary: This article explores quantum oscillations of magnetization in excitonic and Kondo insulators, showing that interactions play a crucial role in these oscillations. In the low-temperature, weak-field regime, the lowest harmonic of these oscillations remains unaffected, allowing for extraction of the zero-field bandgap.
Article
Physics, Multidisciplinary
A. Camacho-Guardian, N. R. Cooper
Summary: Moire excitons, in the presence of cavity photons, exhibit a rich phase diagram with pronounced bistabilities reflecting strong interexciton interactions. The system can realize single- and multiphoton lasers with the presence of incoherent pumping of excitons.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Paul Lauria, Wei-Ting Kuo, Nigel R. Cooper, Julio T. Barreiro
Summary: We have experimentally created a spin-momentum lattice using a trapped Fermi gas. This lattice, formed by cyclically rotated atom-laser couplings between three atomic spin states, creates a triangular lattice in a synthetic spin-momentum space. By demonstrating and studying this lattice's dynamics with spin- and momentum-resolved absorption imaging, new possibilities for synthetic spin systems and engineering topological bands are opened up.
PHYSICAL REVIEW LETTERS
(2022)
Article
Multidisciplinary Sciences
Minzhang Zheng, Carlo Piermarocchi, George Mias
Summary: Longitudinal deep multiomics profiling holds great promise for precision health, but integrating and understanding the complexity of such data remains a challenge. In this study, an individual-focused approach was used to assess single individuals' multiomics time series and group multiple individuals based on similarity of their longitudinal deep multiomics profiles. The analysis of type 2 diabetes mellitus profiles identified individual-level immune responses and clusters of individuals with similar immune behaviors that were associated with their diabetic status.
SCIENTIFIC REPORTS
(2022)
Article
Genetics & Heredity
Shuyue Xue, Lavida R. K. Rogers, Minzhang Zheng, Jin He, Carlo Piermarocchi, George I. Mias
Summary: Differential network (DN) analysis was applied to RNA-sequencing (RNA-seq) time series datasets to investigate gene expression changes in human saliva and B cells treated with a monoclonal antibody drug. The DN method identified the activation of relevant biological pathways and revealed collective temporal behavior of gene clusters. Early and delayed responses were observed in the saliva dataset, while three temporal patterns were identified in the B cell data.
FRONTIERS IN GENETICS
(2022)
Article
Physiology
Minzhang Zheng, Jacqueline Charvat, Sara R. Zwart, Satish K. Mehta, Brian E. Crucian, Scott M. Smith, Jin He, Carlo Piermarocchi, George I. Mias
Summary: From early spaceflight to current missions, astronauts face multiple hazards that impact their health, including low gravity, high radiation, isolation, closed environment, and distance from Earth. This study provides a time-resolved assessment of the physiological impact of spaceflight on astronauts, revealing associations with bone resorption, kidney function, and immune system dysregulation.
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Physics, Multidisciplinary
Paolo Molignini, Nigel R. Cooper
Summary: The ground states of noninteracting fermions in one-dimension with chiral symmetry form a class of topological band insulators. Recently, a generalization of this quantity to open systems-known as the ensemble geometric phase (EGP)-has emerged as a robust way to describe topology at nonzero temperature. By using this quantity, we explore the nature of topology allowed for dissipation beyond a Lindblad description.
PHYSICAL REVIEW RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
A. Camacho-Guardian, N. R. Cooper
Summary: Investigated the influence of nonlocal interactions on the optical response of strongly interacting moire exciton-polaritons under strong optical driving. Found that nonlocal interactions can strongly affect the steady-state properties, resulting in pronounced distortions of multiphoton resonances and spontaneous breaking of translational symmetry.
Proceedings Paper
Computer Science, Hardware & Architecture
Timothy J. Stavenger, Eleanor Crane, Kevin C. Smith, Christopher T. Kang, Steven M. Girvin, Nathan Wiebe
Summary: This article introduces the development of an instruction set architecture for hybrid qubit/bosonic mode systems and the implementation of Bosonic Qiskit software using the Qiskit software development toolkit, which can be used for simulating hybrid systems, verifying physical systems, and modeling large-scale systems.
2022 IEEE HIGH PERFORMANCE EXTREME COMPUTING VIRTUAL CONFERENCE (HPEC)
(2022)
Article
Optics
Yaxing Zhang, Jacob C. Curtis, Christopher S. Wang, R. J. Schoelkopf, S. M. Girvin
Summary: This paper investigates the effect of off-resonant drive on the nonlinearities of cavity modes coupled to transmon ancillas. The study shows that the drive can induce multiphoton resonances among cavity and transmon excitations, leading to strong modification of cavity nonlinearities. It also demonstrates that the cavity Kerr nonlinearity relates to the third-order nonlinear susceptibility function of the driven ancilla, providing a numerically efficient way of computing the cavity Kerr. Furthermore, the paper proposes a method to dynamically correct the cavity Kerr nonlinearity using a single off-resonant transmon drive.
Article
Physics, Multidisciplinary
Benjamin Remez, Nigel R. Cooper
Summary: The study reveals that the dark condensates formed by excitons in materials with an indirect band gap are not completely devoid of optical emission due to many-body interactions. These leaky condensates dominate photoluminescence at low temperatures and have distinctive qualitative features. Furthermore, intervalley physics in these materials can lead to excitonic ordering and impact optical processes.
PHYSICAL REVIEW RESEARCH
(2022)
Article
Physics, Multidisciplinary
Daniel Basilewitsch, Yaxing Zhang, S. M. Girvin, Christiane P. Koch
Summary: This article demonstrates how quantum optimal control theory (OCT) can be used to improve the beamsplitter interaction in continuous-variable quantum computing, and how the three-tone protocol can be further enhanced through optimized drives, increasing its feasibility in practical applications.
PHYSICAL REVIEW RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Simon Lieu, Max McGinley, Oles Shtanko, Nigel R. Cooper, Alexey Gorshkov
Summary: This study shows that the generator of dynamics for Markovian open fermionic systems can exhibit a degeneracy, which is protected by both time-reversal symmetry and the microreversibility property of systems at thermal equilibrium.