53 citations · 205 across the 11 of their papers we have counts for
11 papers
Bath-induced interactions and transient dynamics in open quantum systems at strong coupling: Effective Hamiltonian approach
Marlon Brenes, Brett Min, Nicholas Anto-Sztrikacs +2
Understanding the dynamics of dissipative quantum systems, particularly beyond the weak coupling approximation, is central to various quantum applications. While numerically exact…
Bath-engineering magnetic order in quantum spin chains: An analytic mapping approach
Brett Min, Nicholas Anto-Sztrikacs, Marlon Brenes +1
Dissipative processes can drive different magnetic orders in quantum spin chains. Using a non-perturbative analytic mapping framework, we systematically show how to structure diffe…
Bypassing thermalization timescales in temperature estimation using prethermal probes
Nicholas Anto-Sztrikacs, Harry J. D. Miller, Ahsan Nazir +1
We introduce prethermal temperature probes for sensitive, fast and robust temperature estimation. While equilibrium thermal probes with a manifold of quasidegenerate excited states…
Effective-Hamiltonian theory: An approximation to the equilibrium state of open quantum systems
Nicholas Anto-Sztrikacs, Brett Min, Marlon Brenes +1
We extend and benchmark the recently-developed Effective-Hamiltonian (EFFH) method [PRX Quantum , 020307 (2023)] as an approximation to the equilibrium state ("mean-force G…
Hyper-acceleration of quantum thermalization dynamics by bypassing long-lived coherences: An analytical treatment
Felix Ivander, Nicholas Anto-Sztrikacs, Dvira Segal
We develop a perturbative technique for solving Markovian quantum dissipative dynamics, with the perturbation parameter being a small gap in the eigenspectrum. As an example, we ap…
Effective Hamiltonian theory of open quantum systems at strong coupling
Nicholas Anto-Sztrikacs, Ahsan Nazir, Dvira Segal
We present the reaction-coordinate polaron-transform (RCPT) framework for generating effective Hamiltonian models to treat nonequilibrium open quantum systems at strong coupling wi…
Quantum coherence-control of thermal energy transport: The V model as a case study
Felix Ivander, Nicholas Anto-Sztrikacs, Dvira Segal
Here, we study a minimal model, the three-level V system coupled to two heat baths, and investigate the role of quantum coherences in heat transport in both the transient regime an…
Quantum Thermal Transport Beyond Second Order with the Reaction Coordinate Mapping
Nicholas Anto-Sztrikacs, Felix Ivander, Dvira Segal
Standard quantum master equation techniques such as the Redfield or Lindblad equations are perturbative to second order in the microscopic system-reservoir coupling parameter .…
Capturing non-Markovian dynamics with the reaction coordinate method
Nicholas Anto-Sztrikacs, Dvira Segal
The reaction coordinate (RC) technique is emerging as a significant tool in the study of quantum dissipative dynamics and quantum thermodynamics. With the objective to further esta…
Strong system-bath coupling reshapes characteristics of quantum thermal machines
Felix Ivander, Nicholas Anto-Sztrikacs, Dvira Segal
We study the performance of quantum absorption refrigerators, paradigmatic autonomous quantum thermal machines, and reveal central impacts of strong couplings between the working s…
Strong coupling effects in quantum thermal transport with the reaction coordinate method
Nicholas Anto-Sztrikacs, Dvira Segal
We present a semi-analytical approach for studying quantum thermal energy transport beyond the weak system-bath coupling regime. Our treatment, which results in a renormalized, eff…