Brett Min
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View article: Separation of relaxation timescales via strong system-bath coupling: Dissipative three-level system as a case study
Separation of relaxation timescales via strong system-bath coupling: Dissipative three-level system as a case study Open
We analytically demonstrate that strong system-bath coupling separates the relaxation dynamics of a dissipative quantum system into two distinct regimes: a short-time dynamics that, as expected, accelerates with increasing coupling to the …
View article: Mixed-state phase transitions in spin-Holstein models
Mixed-state phase transitions in spin-Holstein models Open
Understanding coupled electron-phonon systems is one of the fundamental issues in strongly correlated systems. In this work, we aim to extend the notion of mixed-state phases to the realm of coupled electron/spinphonon systems. Specificall…
View article: Bath-induced interactions and transient dynamics in open quantum systems at strong coupling: Effective Hamiltonian approach
Bath-induced interactions and transient dynamics in open quantum systems at strong coupling: Effective Hamiltonian approach Open
Understanding the dynamics of dissipative quantum systems, particularly beyond the weak coupling approximation, is central to various quantum applications. While numerically exact methods provide accurate solutions, they often lack the ana…
View article: Role of Bath-Induced Many-Body Interactions in the Dissipative Phases of the Su-Schrieffer-Heeger Model
Role of Bath-Induced Many-Body Interactions in the Dissipative Phases of the Su-Schrieffer-Heeger Model Open
The Su-Schrieffer-Heeger chain is a prototype example of a symmetry-protected topological insulator. Coupling it non-perturbatively to local thermal environments, either through the intercell or the intracell fermion tunneling elements, mo…
View article: Bath-engineering magnetic order in quantum spin chains: An analytic mapping approach
Bath-engineering magnetic order in quantum spin chains: An analytic mapping approach Open
Dissipative processes can drive different magnetic orders in quantum spin chains. Using a non-perturbative analytic mapping framework, we systematically show how to structure different magnetic orders in spin systems by controlling the loc…
View article: Effective-Hamiltonian theory: An approximation to the equilibrium state of open quantum systems
Effective-Hamiltonian theory: An approximation to the equilibrium state of open quantum systems Open
We extend and benchmark the recently-developed Effective-Hamiltonian (EFFH) method [PRX Quantum $\bf{4}$, 020307 (2023)] as an approximation to the equilibrium state ("mean-force Gibbs state") of a quantum system at strong coupling to a th…
View article: Semiclassical magnetotransport including effects of Berry curvature and Lorentz force
Semiclassical magnetotransport including effects of Berry curvature and Lorentz force Open
In topological semimetals and insulators, negative longitudinal\nmagnetoresistance and angle-dependent planar Hall effect have been reported\narising from the Berry curvature. Using the Boltzmann transport theory, we\npresent a closed-form…
View article: Dynamical approach to improving Majorana qubits and distinguishing them from trivial bound states
Dynamical approach to improving Majorana qubits and distinguishing them from trivial bound states Open
We study a series of dynamical protocols which involve periodically driving a\nquantum dot coupled to a putative nanowire hosting Majorana zero modes (MZMs)\nto i) reduce the hybridization between MZMs, ii) improve the coherence of the\nMa…