Results 91 to 100 of about 76,745 (286)
Statistical Estimation of Quantum Tomography Protocols Quality
, 2010 A novel operational method for estimating the efficiency of quantum state tomography protocols is suggested. It is based on a-priori estimation of the quality of an arbitrary protocol by means of universal asymptotic fidelity distribution and condition ...
A. P. Shurupov +6 more
core +1 more source
Renormalized quantum tomography [PDF]
Physics Letters A, 2010 23 pages, no ...
D'Ariano G M, Sacchi M F
openaire +3 more sources
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
Efficient quantum tomography [PDF]
Proceedings of the forty-eighth annual ACM symposium on Theory of Computing, 2016 In the quantum state tomography problem, one wishes to estimate an unknown $d$-dimensional mixed quantum state $ $, given few copies. We show that $O(d/ )$ copies suffice to obtain an estimate $\hat $ that satisfies $\|\hat - \|_F^2 \leq $ (with high probability). An immediate consequence is that $O(\mathrm{rank}( ) \cdot d/ ^2) \leq O(d^2/
O'Donnell, Ryan, Wright, John
openaire +2 more sources
Advanced Functional Materials, EarlyView.The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner +4 more
wiley +1 more source
Bootstrap tomography of high-precision pulses for quantum control
, 2010 Long-time dynamical decoupling and quantum control of qubits require high-precision control pulses. Full characterization (quantum tomography) of imperfect pulses presents a bootstrap problem: tomography requires initial states of a qubit which can not ...
B. C. Gerstein +5 more
core +1 more source
Advanced Functional Materials, EarlyView.This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger +10 more
wiley +1 more source
Universal compilation for quantum state tomography
Scientific Reports, 2023 Universal compilation is a training process that compiles a trainable unitary into a target unitary. It has vast potential applications from depth-circuit compressing to device benchmarking and quantum error mitigation.
Vu Tuan Hai, Le Bin Ho
doaj +1 more source
Hyperentanglement-enabled Direct Characterization of Quantum Dynamics
, 2012 We use hyperentangled photons to experimentally implement an entanglement-assisted quantum process tomography technique known as Direct Characterization of Quantum Dynamics.
D. Nigg +5 more
core +1 more source
Quantum tomography explains quantum mechanics
, 2021 Starting from a new principle inspired by quantum tomography rather than from Born's rule, this paper gives a self-contained deductive approach to quantum mechanics and quantum measurement. A suggestive notion for what constitutes a quantum detector and for the behavior of its responses leads to a logically impeccable definition of measurement ...
openaire +2 more sources