Learning quantum systems
The future development of quantum technologies relies on creating and manipulating
quantum systems of increasing complexity, with key applications in computation, simulation …
quantum systems of increasing complexity, with key applications in computation, simulation …
Quantum metrology with nonclassical states of atomic ensembles
Quantum technologies exploit entanglement to revolutionize computing, measurements, and
communications. This has stimulated the research in different areas of physics to engineer …
communications. This has stimulated the research in different areas of physics to engineer …
[HTML][HTML] Photonic quantum metrology
Quantum metrology is one of the most promising applications of quantum technologies. The
aim of this research field is the estimation of unknown parameters exploiting quantum …
aim of this research field is the estimation of unknown parameters exploiting quantum …
Long-lived Bell states in an array of optical clock qubits
The generation of long-lived entanglement in optical atomic clocks is one of the main goals
of quantum metrology. Arrays of neutral atoms, where Rydberg-based interactions may …
of quantum metrology. Arrays of neutral atoms, where Rydberg-based interactions may …
Measuring out-of-time-order correlations and multiple quantum spectra in a trapped-ion quantum magnet
Controllable arrays of ions and ultracold atoms can simulate complex many-body
phenomena and may provide insights into unsolved problems in modern science. To this …
phenomena and may provide insights into unsolved problems in modern science. To this …
Time-reversal-based quantum metrology with many-body entangled states
Linear quantum measurements with independent particles are bounded by the standard
quantum limit, which limits the precision achievable in estimating unknown phase …
quantum limit, which limits the precision achievable in estimating unknown phase …
Non-Gaussian quantum states and where to find them
M Walschaers - PRX quantum, 2021 - APS
Gaussian states have played an important role in the physics of continuous-variable
quantum systems. They are appealing for the experimental ease with which they can be …
quantum systems. They are appealing for the experimental ease with which they can be …
Improving metrology with quantum scrambling
Quantum scrambling describes the spreading of information into many degrees of freedom
in quantum systems, such that the information is no longer accessible locally but becomes …
in quantum systems, such that the information is no longer accessible locally but becomes …
Criticality-enhanced quantum sensing via continuous measurement
Present protocols of criticality-enhanced sensing with open quantum sensors assume direct
measurement of the sensor and omit the radiation quanta emitted to the environment …
measurement of the sensor and omit the radiation quanta emitted to the environment …
Open quantum systems with local and collective incoherent processes: Efficient numerical simulations using permutational invariance
The permutational invariance of identical two-level systems allows for an exponential
reduction in the computational resources required to study the Lindblad dynamics of …
reduction in the computational resources required to study the Lindblad dynamics of …