Towards a Tight Finite Key Analysis for BB84
... Fresh from Wikipedia: In quantum mechanics, the Heisenberg uncertainty principle states by precise inequalities that certain pairs of physical properties, such as position and momentum, cannot be simultaneously known to arbitrarily high precision. That is, the more precisely one property can be meas ...
... Fresh from Wikipedia: In quantum mechanics, the Heisenberg uncertainty principle states by precise inequalities that certain pairs of physical properties, such as position and momentum, cannot be simultaneously known to arbitrarily high precision. That is, the more precisely one property can be meas ...
LoPY onL - DSpace@MIT
... channel capacities remain finite as the thermal noise approaches zero in the model. But the concept of a photon channel is nonphysical. It has been noted 8 that there is no known physical system that is able to generate a precise number of photons. ...
... channel capacities remain finite as the thermal noise approaches zero in the model. But the concept of a photon channel is nonphysical. It has been noted 8 that there is no known physical system that is able to generate a precise number of photons. ...
Robust error correction in infofuses
... ignition of a match); indeed, decreasing the thresholding level would likely add spurious additional potassium peaks to the beginning and end of the signal and produce insertion errors in the signal. In figure 2b, corresponding to the message we see that the intended peak near 8 s (marked as intended ...
... ignition of a match); indeed, decreasing the thresholding level would likely add spurious additional potassium peaks to the beginning and end of the signal and produce insertion errors in the signal. In figure 2b, corresponding to the message we see that the intended peak near 8 s (marked as intended ...
pptx version - Physics Department, Princeton University
... to resolve the oscillations, this guarantees that the wavepackets of the different i still overlap (barely). On the other hand, if the detector energy resolution is poor, and the oscillations can’t be resolved in the energy spectrum, the quantum description of this is that the i have “decohered” b ...
... to resolve the oscillations, this guarantees that the wavepackets of the different i still overlap (barely). On the other hand, if the detector energy resolution is poor, and the oscillations can’t be resolved in the energy spectrum, the quantum description of this is that the i have “decohered” b ...
Steady State Entanglement in Quantum Dot Networks
... Quantum Parallelism, which gives quantum computers an advantages over classical computers, arises from the possibility to prepare the state of qubits in a superposition. This allows us to perform a computation on all the states of the qubits:|0i1 |0i2 , |0i1 |1i2 , |1i1 |0i2 , and |1i1 |1i2 at once. ...
... Quantum Parallelism, which gives quantum computers an advantages over classical computers, arises from the possibility to prepare the state of qubits in a superposition. This allows us to perform a computation on all the states of the qubits:|0i1 |0i2 , |0i1 |1i2 , |1i1 |0i2 , and |1i1 |1i2 at once. ...
A low-resource quantum factoring algorithm
... takes time Ld+o(1) where d ≈ 1.232. If many discrete-logarithm problems are posed for the same field then this second stage is the bottleneck (since the first stage is reused for all targets), and we have not found a way to speed up this stage using sublinear quantum resources. On the other hand, if ...
... takes time Ld+o(1) where d ≈ 1.232. If many discrete-logarithm problems are posed for the same field then this second stage is the bottleneck (since the first stage is reused for all targets), and we have not found a way to speed up this stage using sublinear quantum resources. On the other hand, if ...
Interaction-based nonlinear quantum metrology with a cold atomic ensemble
... affects the thermometer while it is measuring. It is crucial to make a distinction between sources of noise. The sources of noise that are technical in principle can be minimized and avoided, while the ones that are fundamental come from physical principles, and can not be avoided. We will see this ...
... affects the thermometer while it is measuring. It is crucial to make a distinction between sources of noise. The sources of noise that are technical in principle can be minimized and avoided, while the ones that are fundamental come from physical principles, and can not be avoided. We will see this ...
Electron microscopy in molecular cell biology I
... • Biological specimens consist mainly of light atoms (H, N, C, O), which suffer most from radiation damage • This makes it essential to minimize the electron dose to about ~25 e/Å2 for single-‐p ...
... • Biological specimens consist mainly of light atoms (H, N, C, O), which suffer most from radiation damage • This makes it essential to minimize the electron dose to about ~25 e/Å2 for single-‐p ...
Revisiting the Einstein
... -9prompt and warm embrace of Bose, along with the fact that Bose’s new statistics yielded an elegant, first-principles derivation of the Planck formula for black body radiation. Accepting Bose’s new statistics, however, meant facing up to the fact that the failure of the mutual independence of quan ...
... -9prompt and warm embrace of Bose, along with the fact that Bose’s new statistics yielded an elegant, first-principles derivation of the Planck formula for black body radiation. Accepting Bose’s new statistics, however, meant facing up to the fact that the failure of the mutual independence of quan ...
Time in Thermodynamics
... in accord with this law. And the law is time reversible: it applies to the reverse-running film as much as to the forward-playing one. Intuitively, the law does not contain any direction of time in it. We can see this by noting that each quantity in the law has the same value in both films: in the ...
... in accord with this law. And the law is time reversible: it applies to the reverse-running film as much as to the forward-playing one. Intuitively, the law does not contain any direction of time in it. We can see this by noting that each quantity in the law has the same value in both films: in the ...
Quantum walk search on satisfiability problems random
... Problems are divided into computational complexity classes generally by the time requirements of their best possible algorithms using big 0 notation. The two main complexity classes used to classify the difficulty of problems are P and NP. These classify problems known as decision problems, those wi ...
... Problems are divided into computational complexity classes generally by the time requirements of their best possible algorithms using big 0 notation. The two main complexity classes used to classify the difficulty of problems are P and NP. These classify problems known as decision problems, those wi ...
Spin Properties in InAs/GaAs Quantum Dot based Nanostructures
... areas of the scientific field is given, together with a description of applied characterization techniques and a summary of the obtained scientific results. The second part consists of the publications which present the main results in detail. ...
... areas of the scientific field is given, together with a description of applied characterization techniques and a summary of the obtained scientific results. The second part consists of the publications which present the main results in detail. ...
Coulomb-Blockade Oscillations in Semiconductor Nanostructures
... See. 4 is the effect of a magnetic field on the amplitude and position of the oscillations, from which detailed Information can be obtained on the one-electron energy spectrum of the quantum dot [32]. In this chapter we consider the Coulomb-blockade oscillations in zero magnetic field and in the int ...
... See. 4 is the effect of a magnetic field on the amplitude and position of the oscillations, from which detailed Information can be obtained on the one-electron energy spectrum of the quantum dot [32]. In this chapter we consider the Coulomb-blockade oscillations in zero magnetic field and in the int ...
Quantum electrodynamics
In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. QED mathematically describes all phenomena involving electrically charged particles interacting by means of exchange of photons and represents the quantum counterpart of classical electromagnetism giving a complete account of matter and light interaction.In technical terms, QED can be described as a perturbation theory of the electromagnetic quantum vacuum. Richard Feynman called it ""the jewel of physics"" for its extremely accurate predictions of quantities like the anomalous magnetic moment of the electron and the Lamb shift of the energy levels of hydrogen.