Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Piccione, Nicolo"'
A quantum system is usually measured through observations performed on a second quantum system, or meter, to which it is coupled. In this scenario, fundamental limitations arise as stated by the celebrated Wigner-Araki-Yanase theorem and its generali
Externí odkaz:
http://arxiv.org/abs/2404.12910
Autor:
Linpeng, Xiayu, Piccione, Nicolo, Maffei, Maria, Bresque, Lea, Prasad, Samyak P., Jordan, Andrew N., Auffeves, Alexia, Murch, Kater W.
When a measurement observable does not commute with a quantum system's Hamiltonian, the energy of the measured system is typically not conserved during the measurement. Instead, energy can be transferred between the measured system and the meter. In
Externí odkaz:
http://arxiv.org/abs/2311.13634
Autor:
Piccione, Nicolò, Maffei, Maria, Linpeng, Xiayu, Jordan, Andrew N., Murch, Kater W., Auffèves, Alexia
Publikováno v:
Phys. Rev. A 109, 063707 (2024)
Measuring an observable which does not commute with the Hamiltonian of a quantum system usually modifies the mean energy of this system. In an autonomous measurement scheme, coupling the system to a quantum meter, the system's energy change must be c
Externí odkaz:
http://arxiv.org/abs/2311.11870
Publikováno v:
Proceedings 12, 22 (2019)
This extended abstract contains an outline of the work reported at the conference IQIS2018. We show that it is possible to exploit a thermalization process to extract work from a resource system $R$ to a bipartite system $S$. To do this, we propose a
Externí odkaz:
http://arxiv.org/abs/2309.04187
Autor:
Piccione, Nicolò
Publikováno v:
Found. Phys. 54, 4 (2024)
Spontaneous collapse models are modifications of standard quantum mechanics in which a physical mechanism is responsible for the collapse of the wavefunction, thus providing a way to solve the so-called "measurement problem". The two most famous of t
Externí odkaz:
http://arxiv.org/abs/2308.04415
Publikováno v:
Phys. Rev. Lett. 132, 220403 (2024)
An effective time-dependent Hamiltonian can be implemented by making a quantum system fly through an inhomogeneous potential, realizing, for example, a quantum gate on its internal degrees of freedom. However, flying systems have a spatial spread tha
Externí odkaz:
http://arxiv.org/abs/2305.02746
Publikováno v:
AVS Quantum Sci. 4, 012001 (2022)
The study of quantum thermodynamics is key to the development of quantum thermal machines. In contrast to most of the previous proposals based on discrete strokes, here we consider a working substance that is permanently coupled to two or more baths
Externí odkaz:
http://arxiv.org/abs/2108.11341
Publikováno v:
Phys. Rev. A 103, 062402 (2021)
Quantum technologies exploiting bipartite entanglement could be made more efficient by using states having the minimum amount of energy for a given entanglement degree. Here, we study how to generate these states in the case of a bipartite system of
Externí odkaz:
http://arxiv.org/abs/2010.13644
Publikováno v:
Phys. Rev. A 103, 032211 (2021)
We present a detailed study of quantum thermal machines employing quantum systems as working substances. In particular, we study two different types of two-stroke cycles where two collections of identical quantum systems with evenly spaced energy lev
Externí odkaz:
http://arxiv.org/abs/2010.03489
Publikováno v:
Phys. Rev. A 105, L011702 (2022)
Various experimental platforms have proven to be valid testbeds for the implementation of nondipolar light-matter interactions, where atomic systems and confined modes interact via two-photon couplings. Here, we study a damped quantum harmonic oscill
Externí odkaz:
http://arxiv.org/abs/2007.07844