Article
Quantum Science & Technology
Ivan Henao, Raam Uzdin
Summary: This study explores the possibilities of catalytic cooling, finding that it is always possible with a sufficiently large catalyst dimension and can be maximized with a small three-level system as a catalyst. Additionally, it demonstrates that catalytic cooling based on a three-body interaction can outperform standard cooling methods in certain multiqubit setups.
Article
Physics, Multidisciplinary
H. Wilming
Summary: Nondecreasing entropy serves as a necessary and sufficient condition for transforming the state of a physical system by a reversible transformation. This applies to both finite-dimensional quantum mechanics and systems described by probability distributions. The results provide a complete single-shot characterization of von Neumann entropy and Shannon entropy without external randomness.
PHYSICAL REVIEW LETTERS
(2021)
Article
Quantum Science & Technology
Rhea Alexander, Si Gvirtz-Chen, Nikolaos Koukoulekidis, David Jennings
Summary: Magic states are important in fault-tolerant quantum computing, and the CSS codes play a crucial role in magic distillation protocols. Previous research focused on odd dimensional magic states and used a phase-space setting to describe universal quantum computing. This study extends the framework to the qubit case and shows improved distillation bounds based on CSS circuits in practical regimes. The findings also reveal entropic constraints on the CSS code length, indicating the necessity of considering CSS codes below a threshold number of qubits.
Article
Physics, Multidisciplinary
Alexander Engel, Scott E. Parker
Summary: Bosonic mean-field theories can accurately represent systems with a large number of bosons, and a similar accurate representation can be achieved at finite n by including interactions with the environment and using a stochastic differential equation. As n approaches infinity, the stochastic terms vanish and the mean-field theory is recovered. This mathematical development not only provides insights into the differences between finite quantum systems and their classical limits, it also lays the foundation for quantum algorithms solving stochastic nonlinear differential equations. The efficiency of these quantum algorithms is discussed, with a focus on the possibility of polynomial complexity in the log of the stochastic system size. A specific system, the stochastic discrete nonlinear Schrodinger equation, is analyzed in detail.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Quantum Science & Technology
Jun-Li Li, Cong-Feng Qiao
Summary: This study introduces a quantum magic square model using high-dimensional probability tensor to characterize different forms of nonlocal phenomena; nonlocalities are shown in the partial-sums of the probability tensor, with uncertainty relation serving as an indicator. They also develop a new quantum steering detection criterion, applicable to an infinite number of observables.
QUANTUM INFORMATION PROCESSING
(2021)
Article
Physics, Fluids & Plasmas
Fei Liu
Summary: By using the probability formulas of quantum trajectories, an auxiliary open quantum system is constructed for a periodically driven open quantum system. It is found that, at a long time limit, the coherent dynamics of the auxiliary system remains the same as that of the original system despite modifications to the Lindblad operators. The construction is illustrated using a periodically driven two-level quantum system.
Article
Physics, Multidisciplinary
Archak Purkayastha, Madhumita Saha, Bijay Kumar Agarwalla
Summary: This study reveals that a one-dimensional ordered fermionic lattice system connected to two baths with different chemical potentials at zero temperature exhibits two phases of subdiffusive conductance scaling with system size, unlike the perfectly ballistic transport in the isolated system. Interestingly, there are two chemical-potential-driven subdiffusive to ballistic phase transitions at zero temperature in the open system scenario.
PHYSICAL REVIEW LETTERS
(2021)
Article
Computer Science, Software Engineering
Connor Powers, Lindsay Bassman, Thomas M. Linker, Ken-ichi Nomura, Sahil Gulania, Rajiv K. Kalia, Aiichiro Nakano, Priya Vashishta
Summary: MISTIQS is a multiplatform software for simulating quantum many-body dynamics of systems governed by time-dependent Heisenberg Hamiltonians. It provides high-level programming functionality for generating intermediate representations of quantum circuits and offers circuit compilation and optimization methods for execution on cloud-based quantum computing backends.
Article
Physics, Multidisciplinary
Kang Lan, Shijie Xie, Xiangji Cai
Summary: We theoretically study the geometric quantum speed limits (QSLs) of open quantum systems under Markovian dynamical evolution. We introduce three types of QSL time bounds based on the geometric inequality associated with the dynamical evolution from an initial state to a final state. By illustrating these bounds in different scenarios, we reveal the significant role of the system Hamiltonian in driving the Markovian evolution and its impact on the unsaturation of QSL bounds.
NEW JOURNAL OF PHYSICS
(2022)
Review
Physics, Multidisciplinary
Francesco Ciccarello, Salvatore Lorenzo, Vittorio Giovannetti, G. Massimo Palma
Summary: This article presents an extensive introduction to quantum collision models (CMs), which are microscopic system-bath models used for investigating dynamics of open quantum systems. The article discusses the definition and general properties of CMs, their application in deriving master equations, their connection with quantum trajectories, and their use in non-equilibrium quantum thermodynamics, among other topics. The state of the art in each research area related to CMs is reviewed. The article also includes complementary appendices that review standard concepts and tools of open quantum systems, making the material accessible even to readers with a basic background in quantum mechanics.
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2022)
Article
Optics
Yang -Yang Xie, Feng-Hua Ren, Run-Hong He, Arapat Ablimit, Zhao-Ming Wang
Summary: The research focuses on obtaining optimal control pulses for open quantum systems through stochastic search procedures to achieve significant adiabatic speedup. These optimal pulses can provide higher fidelity than ideal pulses under relatively strong system-bath coupling strength and high bath temperature. Additionally, the maximal improvement can be achieved with a critical characteristic frequency for certain coupling strength and bath temperature.
Article
Materials Science, Multidisciplinary
Yongchan Yoo, Christopher David White, Brian Swingle
Summary: We use nonequilibrium steady states to study the effect of dissipation-assisted operator evolution (DAOE) on the scaling behavior of transport in one-dimensional spin chains. We consider three models in the XXZ family: the chaotic XXZ model with staggered anisotropy, the Bethe-ansatz integrable XXZ model with no external field and tunable interaction, and the Anderson localized disordered XY model which is free-fermion integrable. Our findings suggest that the effect of DAOE on transport is determined by its impact on the system's conserved quantities, with preservation of the symmetries leading to preserved scaling and breaking of the conserved quantities leading to diffusive scaling of transport.
Article
Physics, Fluids & Plasmas
Manuel H. Munoz-Arias
Summary: In this study, we revisit the equilibration problem in isolated many-body interacting quantum systems, focusing on the equilibration process itself and providing an information theoretic proof of the emergence of a new form of the second law of thermodynamics. By introducing the concepts of statistical complexity and the entropy-complexity plane, we investigate the uniqueness of the road to equilibrium in many-body systems.
Article
Mathematics
Artur Czerwinski
Summary: This article explores the impact of majorization monotone dynamical maps on the efficiency of quantum communication and measures the quality of quantum communication using the discrimination probability.
Article
Multidisciplinary Sciences
Bandar Bin-Mohsin, Muhammad Zakria Javed, Muhammad Uzair Awan, Huseyin Budak, Hasan Kara, Muhammad Aslam Noor
Summary: This paper studies the theory and applications of convex mappings, and presents new Hermite-Hadamard type inequalities through the derivation and proof of several theorems and inequalities. The applications to special means further demonstrate the importance of the research.
Article
Physics, Multidisciplinary
Haidong Yuan, Chi-Hang Fred Fung
NEW JOURNAL OF PHYSICS
(2017)
Article
Physics, Multidisciplinary
Yu Chen, Haidong Yuan
NEW JOURNAL OF PHYSICS
(2017)
Article
Polymer Science
Long Li, Xiuli Zhang, Hongzhen Chen, Xiaohui Sun, Haidong Yuan, Haisheng Xu
Article
Engineering, Electrical & Electronic
Ning Zhang, Heng Yuan, Chen Zhang, Lixia Xu, Jixing Zhang, Guodong Bian, Pengcheng Fan, Haidong Yuan, Jiancheng Fang
IEEE SENSORS JOURNAL
(2019)
Article
Engineering, Mechanical
Haidong Yuan, Zhigang Yang, Chao Xia, Qiliang Li
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
(2019)
Article
Materials Science, Multidisciplinary
Xiuli Zhang, Changli Liu, Long Li, Haidong Yuan, Haisheng Xu
ORGANIC ELECTRONICS
(2019)
Article
Physics, Multidisciplinary
Zhibo Hou, Rui-Jia Wang, Jun-Feng Tang, Haidong Yuan, Guo-Yong Xiang, Chuan-Feng Li, Guang-Can Guo
PHYSICAL REVIEW LETTERS
(2019)
Review
Engineering, Mechanical
Haidong Yuan, Zhigang Yang
Summary: The study demonstrates that the unsteady flow in the front side window region of the vehicle can generate hydrodynamic and acoustic pressure on the front side window, thereby affecting the interior sound field. The hydrodynamic pressure predominantly concentrates in the area interacting with the side mirror wake, while the acoustic pressure uniformly distributes on the front side window, with energy dispersing in the frequency region.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
(2022)
Article
Optics
Yu Chen, Haidong Yuan
Article
Optics
Cong-Hua Yan, W. Z. Jia, Xin-Hong Jia, Hao Yuan, Yong Li, Haidong Yuan
Article
Optics
Hongzhen Chen, Haidong Yuan
Article
Optics
Cong-Hua Yan, Yong Li, Haidong Yuan, L. F. Wei
Article
Optics
Jing Liu, Haidong Yuan
Article
Optics
Jing Liu, Haidong Yuan
Article
Optics
Haidong Yuan, Chi-Hang Fred Fung
