Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Hradil Zdenek"'
Autor:
Bhattacharjee, Abhinandan, Folge, Patrick, Serino, Laura, Řeháček, Jaroslav, Hradil, Zdeněk, Silberhorn, Christine, Brecht, Benjamin
The characterization of the complex spectral amplitude that is, the spectrum and spectral phase, of single-photon-level light fields is a crucial capability for modern photonic quantum technologies. Since established pulse characterisation techniques
Externí odkaz:
http://arxiv.org/abs/2408.12306
The quantum rotor represents, after the harmonic oscillator, the next obvious quantum system to study the complementary pair of variables: the angular momentum and the unitary shift operator in angular momentum. Proper quantification of uncertainties
Externí odkaz:
http://arxiv.org/abs/2403.02498
Reaching ultimate performance of quantum technologies requires the use of detection at quantum limits and access to all resources of the underlying physical system. We establish a full quantum analogy between the pair of angular momentum and exponent
Externí odkaz:
http://arxiv.org/abs/2201.02231
Autor:
Abbattista, Cristoforo, Amoruso, Leonardo, Burri, Samuel, Charbon, Edoardo, Di Lena, Francesco, Garuccio, Augusto, Giannella, Davide, Hradil, Zdenek, Iacobellis, Michele, Massaro, Gianlorenzo, Mos, Paul, Motka, Libor, Paur, Martin, Pepe, Francesco V., Peterek, Michal, Petrelli, Isabella, Rehacek, Jaroslav, Santoro, Francesca, Scattarella, Francesco, Ulku, Arin, Vasiukov, Sergii, Wayne, Michael, D'Angelo, Milena, Bruschini, Claudio, Ieronymaki, Maria, Stoklasa, Bohumil
We review the advancement of the research toward the design and implementation of quantum plenoptic cameras, radically novel 3D imaging devices that exploit both momentum-position entanglement and photon-number correlations to provide the typical ref
Externí odkaz:
http://arxiv.org/abs/2106.07826
The resolution of separation of two elementary signals forming a partially coherent superposition, defined by quantum Fisher information and normalised with respect to detection probabilities, is always limited by the resolution of incoherent mixture
Externí odkaz:
http://arxiv.org/abs/2103.07225
Autor:
Aiello, Andrea, Paur, Martin, Stoklasa, Bohumil, Hradil, Zdenek, Rehacek, Jaroslav, Sanchez-Soto, Luis L.
Publikováno v:
OSA Continuum 3, 2387 (2020)
We report,to the best of our knowledge, the first observation of concentrating paraxial beams of light in a linear nondispersive medium. We have generated this intriguing class of light beams, recently predicted by one of us, in both one- and two-dim
Externí odkaz:
http://arxiv.org/abs/2009.02254
Autor:
Ansari, Vahid, Brecht, Benjamin, Gil-López, Jano, Donohue, John M., Řeháček, Jaroslav, Hradil, Zdeněk, Sánchez-Soto, Luis L., Silberhorn, Christine
Publikováno v:
PRX Quantum 2, 010301 (2021)
Accurate time-delay measurement is at the core of many modern technologies. Here, we present a temporal-mode demultiplexing scheme that achieves the ultimate quantum precision for the simultaneous estimation of the temporal centroid, the time offset,
Externí odkaz:
http://arxiv.org/abs/2009.01069
Publikováno v:
Optica 6 (2019) 1437-1440
In recent proposals for achieving optical super-resolution, variants of the Quantum Fisher Information (QFI) quantify the attainable precision. We find that claims about a strong enhancement of the resolution resulting from coherence effects are ques
Externí odkaz:
http://arxiv.org/abs/1910.10265
Autor:
Teo, Yong Siah, Jeong, Hyunseok, Rehacek, Jaroslav, Hradil, Zdenek, Sanchez-Soto, Luis L., Silberhorn, Christine
Ideal photon-number-resolving detectors form a class of important optical components in quantum optics and quantum information theory. In this article, we theoretically investigate the potential of multiport devices having reconstruction performances
Externí odkaz:
http://arxiv.org/abs/1909.04527
Autor:
Donohue, John M., Ansari, Vahid, Řeháček, Jaroslav, Hradil, Zdeněk, Stoklasa, Bohumil, Paúr, Martin, Sánchez-Soto, Luis L., Silberhorn, Christine
Publikováno v:
Phys. Rev. Lett. 121, 090501 (2018)
By projecting onto complex optical mode profiles, it is possible to estimate arbitrarily small separations between objects with quantum-limited precision, free of uncertainty arising from overlapping intensity profiles. Here we extend these technique
Externí odkaz:
http://arxiv.org/abs/1805.02491