Adiabatic control of decoherence-free subspaces in an open collective system

Reilly, J.; Jäger, Simon B.; Cooper, J.; Holland, Murray

doi:10.1103/physreva.106.023703

Cited by 6 publications

(1 citation statement)

References 59 publications

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“…Additionally, it would be interesting to see the effect that this dissipation has onto the elimination of the bosonic modes. Furthermore, we believe that there is great potential of this theory to also describe collective decay mechanisms, which could be used to engineer superradiant and subradiant states that might both be useful for cooling protocols [26][27][28][29][30] as well as for the preparation of entangled manybody states [31,32].…”

Section: Discussionmentioning

confidence: 99%

Lindblad Master Equations for Quantum Systems Coupled to Dissipative Bosonic Modes

et al. 2022

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Recently, an effective Lindblad master equation for quantum systems whose dynamics are coupled to dissipative bosonic modes has been introduced [Phys. Rev. Lett. 129 063601 (2022)]. In this approach, the bosonic modes are adiabatically eliminated and one can effectively describe the dynamics of the quantum systems.Here, we demonstrate that this effective master equation can also be used to describe cooling in systems with light-matter interactions. We provide two examples: sideband cooling of an optomechanical oscillator in the unresolved as well as resolved sideband regime and cooling of an interacting quantum system, the transverse-field Ising model. We compare our effective description with a full numerical simulation of the composite formed by the quantum system plus bosonic mode and find an excellent agreement. In addition, we present how the effective master equation can be extended to the case of non-vanishing mean thermal occupations of the bosonic mode. We use this approach to calculate modifications of the linewidth and frequency for a two-level system coupled to a dissipative thermal bosonic mode. Here, we highlight that our approach allows for a massive reduction of the underlying Liouville-space dimension.

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Section: Discussionmentioning

confidence: 99%

Lindblad Master Equations for Quantum Systems Coupled to Dissipative Bosonic Modes

et al. 2022

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Entanglement-enhanced quantum metrology: From standard quantum limit to Heisenberg limit

Huang,

Zhuang,

Lee

2024

Applied Physics Reviews

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Entanglement-enhanced quantum metrology explores the utilization of quantum entanglement to enhance measurement precision. When particles in a probe are prepared into a suitable quantum entangled state, they may collectively accumulate information about the physical quantity to be measured, leading to an improvement in measurement precision beyond the standard quantum limit and approaching the Heisenberg limit. The rapid advancement of techniques for quantum manipulation and detection has enabled the generation, manipulation, and detection of multi-particle entangled states in synthetic quantum systems such as cold atoms and trapped ions. This article aims to review and illustrate the fundamental principles and experimental progresses that demonstrate multi-particle entanglement for quantum metrology, as well as discuss the potential applications of entanglement-enhanced quantum sensors.

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Effective description of cooling and thermal shifts in quantum systems coupled to bosonic modes

Jäger

Betzholz

2023

Phys. Rev. A

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Adiabatic control of decoherence-free subspaces in an open collective system

Cited by 6 publications

References 59 publications

Lindblad Master Equations for Quantum Systems Coupled to Dissipative Bosonic Modes

Lindblad Master Equations for Quantum Systems Coupled to Dissipative Bosonic Modes

Entanglement-enhanced quantum metrology: From standard quantum limit to Heisenberg limit

Effective description of cooling and thermal shifts in quantum systems coupled to bosonic modes

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