Probing of nonlinear hybrid optomechanical systems via partial
accessibility
- URL: http://arxiv.org/abs/2201.01784v1
- Date: Wed, 5 Jan 2022 19:00:19 GMT
- Title: Probing of nonlinear hybrid optomechanical systems via partial
accessibility
- Authors: V. Montenegro, M. G. Genoni, A. Bayat, M. G. A. Paris
- Abstract summary: In hybrid optomechanical systems, determining the relevant atom-light and light-mechanics couplings is an essential task.
We perform a comprehensive analysis to determine the optimal subsystem for probing the couplings.
We show that the widely used homodyne detection can extract a fair fraction of the information about the couplings from the light degrees of freedom.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Hybrid optomechanical systems are emerging as a fruitful architecture for
quantum technologies. Hence, determining the relevant atom-light and
light-mechanics couplings is an essential task in such systems. The fingerprint
of these couplings is left in the global state of the system during
non-equilibrium dynamics. However, in practice, performing measurements on the
entire system is not feasible, and thus, one has to rely on partial access to
one of the subsystems, namely the atom, the light, or the mechanics. Here, we
perform a comprehensive analysis to determine the optimal subsystem for probing
the couplings. We find that if the light-mechanics coupling is known or
irrelevant, depending on the range of the qubit-light coupling, then the
optimal subsystem can be either light or the qubit. In other scenarios, e.g.,
simultaneous estimation of the couplings, the light is usually the optimal
subsystem. This can be explained as light is the mediator between the other two
subsystems. Finally, we show that the widely used homodyne detection can
extract a fair fraction of the information about the couplings from the light
degrees of freedom.
Related papers
- Efficiency of Dynamical Decoupling for (Almost) Any Spin-Boson Model [44.99833362998488]
We analytically study the dynamical decoupling of a two-level system coupled with a structured bosonic environment.
We find sufficient conditions under which dynamical decoupling works for such systems.
Our bounds reproduce the correct scaling in various relevant system parameters.
arXiv Detail & Related papers (2024-09-24T04:58:28Z) - Entanglement of Disjoint Intervals in Dual-Unitary Circuits: Exact Results [49.1574468325115]
The growth of the entanglement between a disjoint subsystem and its complement after a quantum quench is regarded as a dynamical chaos indicator.
We show that for almost all dual unitary circuits the entanglement dynamics agrees with what is expected for chaotic systems.
Despite having many conserved charges, charge-conserving dual-unitary circuits are in general not Yang-Baxter integrable.
arXiv Detail & Related papers (2024-08-29T17:45:27Z) - Correlations and energy in mediated dynamics [50.220421906597416]
We study the time required to maximally entangle two principal systems interacting under the same energy constraints.
Direct interactions are proved to provide the fastest way to entangle the principal systems, but it turns out that there exist mediated dynamics that are just as fast.
The final message is that correlations save energy: one has to supply extra energy if maximal entanglement across the principal systems is to be obtained as fast as with an initially correlated mediator.
arXiv Detail & Related papers (2022-08-30T14:49:08Z) - Combination of dissipative and dispersive coupling in the cavity
optomechanical systems [77.34726150561087]
An analysis is given for the Fabry-Perot cavity having a combination of dissipative and dispersive optomechanical coupling.
It is established that the combined coupling leads to optical rigidity.
arXiv Detail & Related papers (2022-01-24T19:25:39Z) - Trajectories without quantum uncertainties in composite systems with
disparate energy spectra [0.0]
measurement-induced quantum back action can be eliminated in composite systems by engineering quantum-mechanics-free subspaces.
The utility of the concept has been limited by the requirement of close proximity of the resonance frequencies of the system of interest and the negative-mass reference system.
Here we propose a general approach which overcomes these limitations by employing periodic modulation of the driving fields.
arXiv Detail & Related papers (2021-11-04T09:12:28Z) - Exact solutions of interacting dissipative systems via weak symmetries [77.34726150561087]
We analytically diagonalize the Liouvillian of a class Markovian dissipative systems with arbitrary strong interactions or nonlinearity.
This enables an exact description of the full dynamics and dissipative spectrum.
Our method is applicable to a variety of other systems, and could provide a powerful new tool for the study of complex driven-dissipative quantum systems.
arXiv Detail & Related papers (2021-09-27T17:45:42Z) - Exact dynamics of non-additive environments in non-Markovian open
quantum systems [0.0]
We present a numerically-exact and efficient technique for tackling the problem of capturing multi-bath system dynamics.
We test the method by applying it to a simple model system that exhibits non-additive behaviour.
We uncover a new regime where the quantum Zeno effect leads to a fully mixed state of the electronic system.
arXiv Detail & Related papers (2021-09-17T10:08:37Z) - Sensing quantum chaos through the non-unitary geometric phase [62.997667081978825]
We propose a decoherent mechanism for sensing quantum chaos.
The chaotic nature of a many-body quantum system is sensed by studying the implications that the system produces in the long-time dynamics of a probe coupled to it.
arXiv Detail & Related papers (2021-04-13T17:24:08Z) - "Membrane-outside" as an optomechanical system [0.0]
We study an optomechanical system, which consists of a two-sided cavity and a mechanical membrane that is placed outside of it.
Our study is focused on the regime where the dispersive optomechanical coupling in the system vanishes.
arXiv Detail & Related papers (2021-02-23T18:18:15Z) - Linear Optical Approach to Supersymmetric Dynamics [3.380017435193996]
In quantum mechanics, the supersymmetric systems refer to the systems involving two supersymmetric partner Hamiltonians.
An interferometric scheme has been proposed to show this relationship in ultracold atoms.
arXiv Detail & Related papers (2020-09-03T19:04:19Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.