Quantum metrology and sensing with many-body systems
The main power of quantum sensors is achieved when the probe is composed of several
particles. In this situation, quantum features such as entanglement contribute in enhancing …
particles. In this situation, quantum features such as entanglement contribute in enhancing …
Multispin Clifford codes for angular momentum errors in spin systems
S Omanakuttan, JA Gross - Physical Review A, 2023 - APS
The physical symmetries of a system play a central role in quantum error correction. In this
work we encode a qubit in a collection of systems with angular momentum symmetry (spins) …
work we encode a qubit in a collection of systems with angular momentum symmetry (spins) …
Optimal time for sensing in open quantum systems
We study the time-dependent quantum Fisher information (QFI) in an open quantum system
satisfying the Gorini-Kossakowski-Sudarshan-Lindblad master equation. Most of our work …
satisfying the Gorini-Kossakowski-Sudarshan-Lindblad master equation. Most of our work …
Experimental distributed quantum sensing in a noisy environment
The precision advantages offered by harnessing the quantum states of sensors can be
readily compromised by noise. However, when the noise has a different spatial function than …
readily compromised by noise. However, when the noise has a different spatial function than …
Quantum-enhanced mean value estimation via adaptive measurement
Quantum-enhanced (ie, higher performance by quantum effects than any classical methods)
mean value estimation of observables is a fundamental task in various quantum …
mean value estimation of observables is a fundamental task in various quantum …
Machine-learning-inspired quantum control in many-body dynamics
Achieving precise preparation of quantum many-body states is crucial for the practical
implementation of quantum computation and quantum simulation. However, the inherent …
implementation of quantum computation and quantum simulation. However, the inherent …
Estimating time in quantum chaotic systems and black holes
We characterize new universal features of the dynamics of chaotic quantum many-body
systems, by considering a hypothetical task of" time estimation." Most macroscopic …
systems, by considering a hypothetical task of" time estimation." Most macroscopic …
Covariant Quantum Error-Correcting Codes with Metrological Entanglement Advantage
We show that a subset of the basis for the irreducible representations of the total $ SU (2) $
rotation forms a covariant approximate quantum error-correcting code with transversal $ U …
rotation forms a covariant approximate quantum error-correcting code with transversal $ U …
Selective and noise-resilient wave estimation with quantum sensor networks
We consider the selective sensing of planar waves in the presence of noise. We present
different methods to control the sensitivity of a quantum sensor network, which allow one to …
different methods to control the sensitivity of a quantum sensor network, which allow one to …
Enhanced quantum sensing mediated by a cavity in open systems
We simulate the dynamics of systems with $ N $= 1-20 qubits coupled to a cavity in order to
assess their potential for quantum metrology of a parameter in the open systems limit. The …
assess their potential for quantum metrology of a parameter in the open systems limit. The …