Noise that exhibits significant temporal and spatial correlations across multiple qubits can be
especially harmful to both fault-tolerant quantum computation and quantum-enhanced …

Quantum metrology promises unprecedented precision of parameter estimation, but it is
often vulnerable to noise. While significant efforts have been devoted to improving the …

We study quantum frequency estimation for N qubits subjected to independent Markovian
noise, via strategies based on time-continuous monitoring of the environment. Both physical …

The detrimental impact of noise on sensing performance in quantum metrology has been
widely recognized by researchers in the field. However, there are no explicit fundamental …

We address a particular instance where open quantum systems may be used as quantum
probes for an emergent property of a complex system, as the temperature of a thermal bath …

We introduce a genetic algorithm that designs quantum optics experiments for engineering
quantum states with specific properties. Our algorithm is powerful and flexible, and can …

More than a century after the inception of quantum theory, the question of which traits and
phenomena are fundamentally quantum remains under debate. Here, we give an answer to …

Two-photon absorption (TPA) is of fundamental importance in super-resolution imaging and
spectroscopy. Its nonlinear character allows for the prospect of using quantum resources …

In this paper, we propose a quantum amplitude estimation method that uses a modified
Grover operator and quadratically improves the estimation accuracy in the ideal case, as in …

Noise is the greatest obstacle in quantum metrology that limits it achievable precision and
sensitivity. There are many techniques to mitigate the effect of noise, but this can never be …