Generation of entanglement via squeezing on a tripartite-optomechanical
system
- URL: http://arxiv.org/abs/2308.00216v1
- Date: Tue, 1 Aug 2023 01:16:40 GMT
- Title: Generation of entanglement via squeezing on a tripartite-optomechanical
system
- Authors: Kevin Araya-Sossa and Miguel Orszag
- Abstract summary: We introduce a new strategy to regulate the quantum entanglement in a dispersive-hybrid system where a qubit is directly coupled to a cavity and a resonator.
Entangled qubit-cavity states are created through squeezing, even though there is no direct interaction between them.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We introduce a new strategy to regulate the quantum entanglement in a
dispersive-hybrid system where a qubit is directly coupled to a cavity and a
resonator. A dramatic transition takes place by only tuning the squeezing
parameters associated with the vibrational mode. As the squeezing amplitude
becomes larger, the maximal entanglement abruptly falls to zero at specific
squeezing phases. It is also possible to generate entanglement for bipartitions
from the qubit-cavity-resonator system after applying this strategy. Entangled
qubit-cavity states are created through squeezing, even though there is no
direct interaction between them. We also analyze the effect of atomic, optical,
and vibrational losses on the quantum entanglement. Finally, we discuss future
realizations to implement all these ideas and promote further studies to
generalize the concept of monogamy in tripartite systems outside
qubit-composite states, in particular, $(2 \otimes 2 \otimes n)$-dimensional
systems.
Related papers
- Generating arbitrary superpositions of nonclassical quantum harmonic oscillator states [0.0]
We create arbitrary superpositions of nonclassical and non-Gaussian states of a quantum harmonic oscillator using the motion of a trapped ion coupled to its internal spin states.
We observe the nonclassical nature of these states in the form of Wigner negativity following a full state reconstruction.
arXiv Detail & Related papers (2024-09-05T12:45:57Z) - Decoherence Limits the Cost to Simulate an Anharmonic Oscillator [0.0]
We study how decoherence washes out the fine-grained subPlanck structure associated with phase-space quantum interference in a quantum system.
Open quantum dynamics can be more efficiently simulated using a coarse-grained finite-difference numerical integration.
We show that this regression does not have the form of a convex noise model, such as for a depolarizing noise channel.
arXiv Detail & Related papers (2023-07-03T04:49:10Z) - Dissipative preparation and stabilization of many-body quantum states in
a superconducting qutrit array [55.41644538483948]
We present and analyze a protocol for driven-dissipatively preparing and stabilizing a manifold of quantum manybody entangled states.
We perform theoretical modeling of this platform via pulse-level simulations based on physical features of real devices.
Our work shows the capacity of driven-dissipative superconducting cQED systems to host robust and self-corrected quantum manybody states.
arXiv Detail & Related papers (2023-03-21T18:02:47Z) - Scalable spin squeezing in a dipolar Rydberg atom array [2.392520546501394]
We show how to enhance the precision of measurements beyond the standard quantum limit.
To do so, one can reshape the quantum projection noise -- a strategy known as squeezing.
We present two independent refinements: first, using a multistep spin-squeezing protocol allows us to further enhance the squeezing by approximately 1 dB, and second, leveraging Floquet engineering to realize Heisenberg interactions.
arXiv Detail & Related papers (2023-03-14T16:35:17Z) - Evolution of many-body systems under ancilla quantum measurements [58.720142291102135]
We study the concept of implementing quantum measurements by coupling a many-body lattice system to an ancillary degree of freedom.
We find evidence of a disentangling-entangling measurement-induced transition as was previously observed in more abstract models.
arXiv Detail & Related papers (2023-03-13T13:06:40Z) - Autonomous coherence protection of a two-level system in a fluctuating
environment [68.8204255655161]
We re-examine a scheme originally intended to remove the effects of static Doppler broadening from an ensemble of non-interacting two-level systems (qubits)
We demonstrate that this scheme is far more powerful and can also protect a single (or even an ensemble) qubit's energy levels from noise which depends on both time and space.
arXiv Detail & Related papers (2023-02-08T01:44:30Z) - Qubit control using quantum Zeno effect: Action principle approach [0.0]
We study the stages in which quantum Zeno effect helps control the states of a simple quantum system.
The detailed dynamics of a driven two-level system subjected to repeated measurements unravels a myriad of phases.
We believe that the systematic treatment presented here paves the way for a better and clearer understanding of quantum Zeno effect in the context of quantum error correction.
arXiv Detail & Related papers (2022-11-16T09:01:13Z) - Multi-squeezed state generation and universal bosonic control via a
driven quantum Rabi model [68.8204255655161]
Universal control over a bosonic degree of freedom is key in the quest for quantum-based technologies.
Here we consider a single ancillary two-level system, interacting with the bosonic mode of interest via a driven quantum Rabi model.
We show that it is sufficient to induce the deterministic realization of a large class of Gaussian and non-Gaussian gates, which in turn provide universal bosonic control.
arXiv Detail & Related papers (2022-09-16T14:18:53Z) - Quantum vibrational mode in a cavity confining a massless spinor field [91.3755431537592]
We analyse the reaction of a massless (1+1)-dimensional spinor field to the harmonic motion of one cavity wall.
We demonstrate that the system is able to convert bosons into fermion pairs at the lowest perturbative order.
arXiv Detail & Related papers (2022-09-12T08:21:12Z) - Fractional resonances and prethermal states in Floquet systems [0.0]
In periodically-driven quantum systems, resonances can induce exotic nonequilibrium behavior and new phases of matter without static analog.
We report on the emergence of fractional and integer resonances in a broad class of many-body Hamiltonians with a modulated hopping with a frequency that is either a fraction or an integer of the on-site interaction.
Our findings reveal novel features of the nonequilibrium quantum many-body system, such as the coexistence of Floquet prethermalization and localization.
arXiv Detail & Related papers (2021-11-12T21:35:20Z) - Zitterbewegung and Klein-tunneling phenomena for transient quantum waves [77.34726150561087]
We show that the Zitterbewegung effect manifests itself as a series of quantum beats of the particle density in the long-time limit.
We also find a time-domain where the particle density of the point source is governed by the propagation of a main wavefront.
The relative positions of these wavefronts are used to investigate the time-delay of quantum waves in the Klein-tunneling regime.
arXiv Detail & Related papers (2020-03-09T21:27:02Z)
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.