Thermally-induced qubit coherence in quantum electromechanics
arXiv:2206.04499 · doi:10.1088/1367-2630/ac9a66
Abstract
Quantum coherence, the ability of a quantum system to be in a superposition of orthogonal quantum states, is a distinct feature of the quantum mechanics, thus marking a deviation from classical physics. Coherence finds its applications in quantum sensing and metrology, quantum thermodynamics and computation. A particularly interesting is the possibility to observe coherence arising in counter-intuitive way from thermal energy that is without implementation of intricate protocols involving coherent driving sequences. In this manuscript, we investigate quantum coherence emerging in a hybrid system composed of a two-level system (qubit) and a thermal quantum harmonic oscillator (a material mechanical oscillator), inspired by recent experimental progress in fabrication of such systems. We show that quantum coherence is created in such a composite system solely from the interaction of the parts and persists under relevant damping. Implementation of such scheme will demonstrate previously unobserved mechanisms of coherence generation and can be beneficial for hybrid quantum technologies with mechanical oscillators and qubits.
arXiv comment14 pages, 5 + 2 figures
References in corpus (58)
- Quantum sensing
- Advances in Quantum Metrology
- Quantum Computing
- Quantifying Coherence
- QuTiP 2: A Python framework for the dynamics of open quantum systems
- QuTiP: An open-source Python framework for the dynamics of open quantum systems
- Sideband Cooling Micromechanical Motion to the Quantum Ground State
- Quantum Coherence as a Resource
- Hybrid quantum circuits: Superconducting circuits interacting with other quantum systems
- Operational Resource Theory of Coherence
- Natural Thermal and Magnetic Entanglement in 1D Heisenberg Model
- Fundamental limitations for quantum and nano thermodynamics
- Description of quantum coherence in thermodynamic processes requires constraints beyond free energy
- Robustness of coherence: An operational and observable measure of quantum coherence
- Information and Computation: Classical and Quantum Aspects
- Quantum acoustics with superconducting qubits
- Strong magnetic coupling between an electronic spin qubit and a mechanical resonator
- Quantum coherence in multipartite systems
- The extraction of work from quantum coherence
- Quantum coherence and geometric quantum discord
- Sideband Cooling Beyond the Quantum Limit with Squeezed Light
- Fast Reset and Suppressing Spontaneous Emission of a Superconducting Qubit
- Quantum Coherence via Skew Information and Its Polygamy
- Relations between coherence and path information
- Fast and Unconditional All-Microwave Reset of a Superconducting Qubit
- The role of quantum coherence in non-equilibrium entropy production
- The role of coherence in the non-equilibrium thermodynamics of quantum systems
- Quantum state preparation, tomography, and entanglement of mechanical oscillators
- Quantifying Coherence in Infinite Dimensional Systems
- Resolving Phonon Fock States in a Multimode Cavity with a Double-Slit Qubit
- Circuit QED and engineering charge based superconducting qubits
- Observation of quantum interference between separated mechanical oscillator wavepackets
- Spin-motion entanglement and state diagnosis with squeezed oscillator wavepackets
- Energy Cost of Creating Quantum Coherence
- Resource theory of coherence based on positive-operator-valued measures
- Steady-state coherences by composite system-bath interactions
- Finite-Time Quantum Landauer Principle and Quantum Coherence
- Tunable phonon induced steady state coherence in a double quantum dot
- Weak and ultrastrong coupling limits of the quantum mean force Gibbs state
- Quantum-enabled interface between microwave and telecom light
- Optomechanical ground-state cooling in a continuous and efficient electro-optic transducer
- Non-equilibrium steady-states of memoryless quantum collision models
- Measurements of nanoresonator-qubit interactions in a hybrid quantum electromechanical system
- Axiomatic and operational connections between the -norm of coherence and negativity
- Quantum variance: a measure of quantum coherence and quantum correlations for many-body systems
- Nonclassical energy squeezing of a macroscopic mechanical oscillator
- Unconventional quantum sound-matter interactions in spin-optomechanical-crystal hybrid systems
- Logarithmic coherence: Operational interpretation of -norm coherence
- Hybrid optomechanics for Quantum Technologies
- The l1 Norm of Coherence of Assistance
- Enhanced steady-state coherence via repeated system-bath interactions
- Hybrid cavity mechanics with doped systems
- Measurement Induced Localization of Relative Degrees of Freedom
- Ground-State Cooling of a Mechanical Oscillator via a Hybrid Electro-Optomechanical System
- Equilibrium Coherence in the Multi-level Spin-boson Model
- Extraction of autonomous quantum coherences
- Quantum-classical correspondence in spin-boson equilibrium states at arbitrary coupling
- Quantum coherence, correlations and nonclassical states in the two-qubit Rabi model with parametric oscillator