The current theories of quantum physics and general relativity on their own do not allow us to study situations in which the gravitational source is quantum. Here, we propose a strategy to determine the dynamics of objects in the presence of mass configurations in superposition, and hence an ind...
"Guitars involve vibrations of strings, as those strings vibrate, you'll see the vibration is made up of lots of different notes. There's a vibrational mode associated with the length of the guitar string but there's also modes that are associated with half the length, a quarter of the l...
In ordinary room-temperature physics a low-entropy crystalline solid (solute) dissolves into a high-entropy liquid (solvent), in the process called solvation. We propose that the massive increase in the entropy during the gravitational collapse is a physical process analogous to solvation, where the...
and ending with measurements of all qubits inZbasis. Our task is to simulate the original circuit by sampling from its output probability distribution within a given errorϵin the total variation distance. On the basis of the original circuit, our protocol recursively defines a level-lcircuit (...
The first one relies on DifferentialEquations.jl39 which provides a set of low-level solvers for ordinary differential equations. The second method directly builds the propagator when the system Hamiltonian is time-independent: \(\hat{{{\mathcal{G}}}(t)=\exp (\hat{{{\mathcal{M}}}t)\) ...
and we know why our planets orbit the sun in ellipses in the way that they do. And we’ve got a good handle on all of the things that, as humans, we can see and observe and experiment on. Quantum physics is really what’s going on at tiniest level that we ca...
A quantum source on board the satellite provides single-photon level signals that are detected by the OGS. A switchable strong/weak coherent pulse source allows both the possibility of characterization of pointing performance and the free-space channel as well as quantum key distribution. An ...
The principle of least action is arguably the most fundamental principle in physics as it can be used to derive the equations of motion in various branches of physics. However, this principle has not been experimentally demonstrated at the quantum level because the propagators for Feynman’s path...
Phys. Rev. A 74, 032334 (2006). Article ADS Google Scholar Gottesman, D. Fault-tolerant quantum computation with higher-dimensional systems. Lect. Notes Comput. Sci. 1509, 302–313 (1999). Article MathSciNet MATH Google Scholar Kues, M. et al. On-chip generation of high-dimensional ...
Quantum computers store and process information at the level of individual atoms. Quantum communication systems transmitinformation on individual photons. Over the past half century, the wires and logic gates in computers have halved in size every year and a half, a phenomenon known asMoore's law...