Zobrazeno 1 - 10
of 429
pro vyhledávání: '"Datta, Animesh"'
We study the complexity of testing properties of quantum channels. First, we show that testing identity to any channel $\mathcal N: \mathbb C^{d_{\mathrm{in}} \times d_{\mathrm{in}}} \to \mathbb C^{d_{\mathrm{out}} \times d_{\mathrm{out}}}$ in diamon
Externí odkaz:
http://arxiv.org/abs/2409.12566
We investigate the precision of estimating the interaction strength between a two-level system (TLS) and a single-photon pulse when the latter is subject to chirping. We consider linear, quadratic, and sinusoidal temporal phases applied to Gaussian a
Externí odkaz:
http://arxiv.org/abs/2405.02723
Quantum vacuum fluctuations of the electromagnetic field result in two signatures on a harmonically trapped charged particle: a shift from the natural trap frequency and generation of quantum coherences. We assess the role of the long-wavelength and
Externí odkaz:
http://arxiv.org/abs/2404.10453
To investigate the transport properties in random alloys, it is important to model the alloy disorder using supercells. Though traditional methods like Virtual Crystal Approximation (VCA) are computationally efficient, the local disorder in the syste
Externí odkaz:
http://arxiv.org/abs/2402.16203
In this work, the Effective Phonon Dispersion of $\beta$- (Al$_x$Ga$_{1-x}$)$_2$O$_3$ alloy is investigated using the Phonon unfolding formalism. To capture the true randomness of the system, supercells are designed using the technique of special qua
Externí odkaz:
http://arxiv.org/abs/2312.14014
We consider the problem of estimating an unknown but constant carrier phase modulation theta using a general, possibly entangled, n-mode optical probe through n independent and identical uses of a lossy bosonic channel with additive thermal noise. We
Externí odkaz:
http://hdl.handle.net/10150/626465
http://arizona.openrepository.com/arizona/handle/10150/626465
http://arizona.openrepository.com/arizona/handle/10150/626465
Publikováno v:
Quantum Sci. Technol. 9 035004 (2024)
It depends. For a single molecule interacting with one mode of a biphoton probe, we show that the spectroscopic information has three contributions, only one of which is a genuine two-photon contribution. When all the scattered light can be measured,
Externí odkaz:
http://arxiv.org/abs/2307.02204
Publikováno v:
2024 Class. Quantum Grav. 41 075003
We present a formalism to discern the effects of fluctuations of the spacetime metric on electromagnetic radiation. The formalism works via the measurement of electromagnetic field correlations, while allowing a clear assessment of the assumptions in
Externí odkaz:
http://arxiv.org/abs/2306.17706
We present an accreditation protocol for analogue, i.e., continuous-time, quantum simulators. For a given simulation task, it provides an upper bound on the variation distance between the probability distributions at the output of an erroneous and er
Externí odkaz:
http://arxiv.org/abs/2306.03060