Observing different quantum trajectories in cavity QED

Abstract

The experimental observation of quantum jumps is an example of single open quantum systems that, when monitored, evolve in terms of stochastic trajectories conditioned on measurements results. Here we present a proposal that allows the experimental observation of a much larger class of quantum trajectories in cavity QED systems. In particular, our scheme allows for the monitoring of engineered thermal baths that are crucial for recent proposals for probing entanglement decay and also for entanglement protection. The scheme relies on the interaction of a three-level atom and a cavity mode that interchangeably play the roles of system and probe. If the atom is detected the evolution of the cavity fields follows quantum trajectories and vice-versa.

5 pages, 2 figures

References in corpus (20)

• Quantum jumps of light recording the birth and death of a photon in a cavity
• Optimal Unravellings for Feedback Control in Linear Quantum Systems
• Controlling the dynamics of a coupled atom-cavity system by pure dephasing : basics and potential applications in nanophotonics
• Complete parameterization, and invariance, of diffusive quantum trajectories for Markovian open systems
• Conditional large Fock state preparation and field state reconstruction in Cavity QED
• Engineering Atomic Quantum Reservoirs for Photons
• Entanglement within the Quantum Trajectory Description of Open Quantum Systems
• Five Lectures On Dissipative Master Equations
• Quantum Jumps between Macroscopic Quantum States of a Superconducting Qubit Coupled to a Microscopic Two-Level System
• Suppressing decoherence and improving entanglement by quantum-jump-based feedback control in two-level systems
• Entanglement dynamics in open two-qubit systems via diffusive quantum trajectories
• Universal and deterministic manipulation of the quantum state of harmonic oscillators: a route to unitary gates for Fock State qubits
• Physical interpretation of stochastic Schroedinger equations in cavity QED
• Decoherence control in microwave cavities
• Distant entanglement protected through artificially increased local temperature
• Continuous stochastic Schrodinger equations and localization
• Average Entanglement for Markovian Quantum Trajectories
• Continuous quantum non-demolition measurement of Fock states of a nanoresonator using feedback-controlled circuit QED
• Continuous Quantum Error Correction Through Local Operations
• Protection of quantum information and optimal singlet conversion through higher dimensional quantum systems and environment monitoring

Cited by in corpus (13)

• Quantum Trajectory Approach to the Stochastic Thermodynamics of a Forced Harmonic Oscillator
• Entropy production along nonequilibrium quantum jump trajectories
• Thermodynamic uncertainty relation for general open quantum systems
• Quantum nonequilibrium equalities with absolute irreversibility
• On the optimal feedback control of linear quantum systems in the presence of thermal noise
• Probing quantum fluctuation theorems in engineered reservoirs
• Ignorance is bliss: General and robust cancellation of decoherence via no-knowledge quantum feedback
• Incoherent control of optical signals; quantum heat engine approach
• Creating and controlling exceptional points of non-Hermitian Hamiltonians via homodyne Lindbladian invariance
• Efficiency of optically pumping a quantum battery and a two-stroke heat engine
• Entanglement of a pair of quantum emitters via continuous fluorescence measurements: a tutorial
• Continuous decomposition of quantum measurements via qubit probe feedback
• Measurement-based generation of shaped single photons and coherent state superpositions in optical cavities