![Experimental Satellite Quantum Communications](http://s1.studyres.com/store/data/005534835_1-2df09a0350711bf1d1769e16549dde2e-300x300.png)
Experimental Satellite Quantum Communications
... encoded in four different polarization states of two mutually unbiased bases. Setup.—In order to minimize the background radiation and dark counts, it is of paramount importance, on the Bob side, to minimize the dwell time of the qubit detection: the latter is related to the precision in the assessm ...
... encoded in four different polarization states of two mutually unbiased bases. Setup.—In order to minimize the background radiation and dark counts, it is of paramount importance, on the Bob side, to minimize the dwell time of the qubit detection: the latter is related to the precision in the assessm ...
Entangled Photons and Bell`s Inequality
... entanglement. This was accomplished by subjecting an incident beam to spontaneous parametric down conversion, a process where one photon produces two daughter polarization entangled photons. Entangled photons were sent to polarizers which were placed in front of two avalanche photodiodes; by changin ...
... entanglement. This was accomplished by subjecting an incident beam to spontaneous parametric down conversion, a process where one photon produces two daughter polarization entangled photons. Entangled photons were sent to polarizers which were placed in front of two avalanche photodiodes; by changin ...
Universal resources for quantum information processing
... In particular, universal quantum information processing over continuous variables is achievable once single- and two-mode linear operations are at disposal, provided that a single non-linear operation is also available. Whereas linear operations have been both demonstrated experimentally and fully c ...
... In particular, universal quantum information processing over continuous variables is achievable once single- and two-mode linear operations are at disposal, provided that a single non-linear operation is also available. Whereas linear operations have been both demonstrated experimentally and fully c ...
The Wave
... electromagnetic waves don't transmit energy continuously but in small packets. It went against Newtonian physics since objects aren't free to vibrate with any energy. The energy only has certain discreet values. ...
... electromagnetic waves don't transmit energy continuously but in small packets. It went against Newtonian physics since objects aren't free to vibrate with any energy. The energy only has certain discreet values. ...
Entanglement verification with detection efficiency
... To measure optical signals, we tend to use threshold detectors, which do not provide any refined knowledge about the photon number of an incoming signal. Often, there is a detection efficiency mismatch between the various detectors in a setup, either intrinsically, or induced by an adversary. Such a ...
... To measure optical signals, we tend to use threshold detectors, which do not provide any refined knowledge about the photon number of an incoming signal. Often, there is a detection efficiency mismatch between the various detectors in a setup, either intrinsically, or induced by an adversary. Such a ...
Simple Harmonic Oscillator
... and vice-versa Alice & Bob exchange list of choice of Q vs U states (via public channel). Keep only cases where they randomly made the same choice (in which case the Bob should get the digit Alice sent, barring interference). Check subsample of digits for interference (Eve or bad transmission). ...
... and vice-versa Alice & Bob exchange list of choice of Q vs U states (via public channel). Keep only cases where they randomly made the same choice (in which case the Bob should get the digit Alice sent, barring interference). Check subsample of digits for interference (Eve or bad transmission). ...
A hands-on introduction to single photons and quantum mechanics for undergraduates
... with our students, introducing concepts as needed to explain observed results. Most of the experiments described have been performed by others in both pedagogical and research settings. The goal of this paper is to offer a slightly different pedagogical approach than previously reported and to clari ...
... with our students, introducing concepts as needed to explain observed results. Most of the experiments described have been performed by others in both pedagogical and research settings. The goal of this paper is to offer a slightly different pedagogical approach than previously reported and to clari ...
poster
... Student 2: The blob represents the electron itself, since an electron is described by a wave packet that will spread out over time. The electron acts as a wave and will go through both slits and interfere with itself. That's why a distinct interference pattern will show up on the screen after shooti ...
... Student 2: The blob represents the electron itself, since an electron is described by a wave packet that will spread out over time. The electron acts as a wave and will go through both slits and interfere with itself. That's why a distinct interference pattern will show up on the screen after shooti ...
Statistical Properties of the Squeezed Displaced Number States
... squeezed state can be considered as one of the most studied state [1]. It is characterized by the fact that the indetermination in one of the two quadraturecomponents of the electromagnetic eld is smaller than in the usual coherent states. It is of great importance, as in optical communication and ...
... squeezed state can be considered as one of the most studied state [1]. It is characterized by the fact that the indetermination in one of the two quadraturecomponents of the electromagnetic eld is smaller than in the usual coherent states. It is of great importance, as in optical communication and ...
Quantum Imaging I
... • Study the physics of multi-photon imaging for entangled state, coherent state and chaotic thermal state: distinguish their quantum and classical nature, in particular, the necessary and/or unnecessary role of quantum entanglement in quantum imaging and lithography. • “Magic” mirror for “ghost” ima ...
... • Study the physics of multi-photon imaging for entangled state, coherent state and chaotic thermal state: distinguish their quantum and classical nature, in particular, the necessary and/or unnecessary role of quantum entanglement in quantum imaging and lithography. • “Magic” mirror for “ghost” ima ...
Solutions to the exam itself are now available.
... electrons. Cl– is isoelectronic to Ar with closed subshells. (In addition, both Al2– and S2– would be spherical, and if you circled these, you were not penalized as long as you also circled Si and Cl.) (f) The Cr4+ ion in the compound CrO2 is exploited in magnetic audio and video recording tape. The ...
... electrons. Cl– is isoelectronic to Ar with closed subshells. (In addition, both Al2– and S2– would be spherical, and if you circled these, you were not penalized as long as you also circled Si and Cl.) (f) The Cr4+ ion in the compound CrO2 is exploited in magnetic audio and video recording tape. The ...
Quantum Numbers
... – Number of waves that pass a specific point in a given time – Unit: Hz or waves/sec Recall that Speed = Distance/time (m/sec) ...
... – Number of waves that pass a specific point in a given time – Unit: Hz or waves/sec Recall that Speed = Distance/time (m/sec) ...
Holonomic quantum computation with neutral atoms
... [1] is a dynamical one: in order to manipulate the quantum state of systems encoding information, local interactions between low dimensional subsystems (qubits) are switched on and off in such a way to enact a sequence of quantum gates. On the other hand, ever since the discovery of the Berry’s phase ...
... [1] is a dynamical one: in order to manipulate the quantum state of systems encoding information, local interactions between low dimensional subsystems (qubits) are switched on and off in such a way to enact a sequence of quantum gates. On the other hand, ever since the discovery of the Berry’s phase ...
PDF
... Quantum communication is carried out in the Fig. 1 configuration via the following protocol. The entire system is clocked. Time slots of signal and idler (say 400 ns long) are transmitted down optical fibers to the quantum memories. These slots are gated into the memory cavities—with their respective ...
... Quantum communication is carried out in the Fig. 1 configuration via the following protocol. The entire system is clocked. Time slots of signal and idler (say 400 ns long) are transmitted down optical fibers to the quantum memories. These slots are gated into the memory cavities—with their respective ...
Solutions
... P4) (5 pts) Hmmm... That’s Strange. (or “What The H#ll is Going On!?!?”): What did Stern and Gerlack stumble upon as they shot Ag atoms thru a gradient magnetic field in their attempt to study the orbital angular momentum quantum states of an atom? They discovered the intrinsic angular momentum we c ...
... P4) (5 pts) Hmmm... That’s Strange. (or “What The H#ll is Going On!?!?”): What did Stern and Gerlack stumble upon as they shot Ag atoms thru a gradient magnetic field in their attempt to study the orbital angular momentum quantum states of an atom? They discovered the intrinsic angular momentum we c ...
In the beginning - North Allegheny School District
... But what on earth is a measurement? Does it require human agency or observation or (like a tree falling in a forest when no one is watching) can measurements happen in the dark? And supposing we know what a measurement is, how exactly does it make a quantum system choose between its various options ...
... But what on earth is a measurement? Does it require human agency or observation or (like a tree falling in a forest when no one is watching) can measurements happen in the dark? And supposing we know what a measurement is, how exactly does it make a quantum system choose between its various options ...
... Since they are large compared to the lifetime of the intermediate state of the cascade (5 ns) all true coincidences are registered. We infer the accidental coincidence rates from the corresponding single rates, knowing the widths of the windows. This method is valid with our very stable source, and ...
Discussion of Experimental Proof for the Paradox of Einstein, Rosen
... First of all, Bohr' has proposed that the observing apparatus plus what is observed form a single indivisible combined system not capable at the quantummechanical level of being analyzed correctly into separate and distinct parts. Each particular kind of apparatus then forms with an electron for exa ...
... First of all, Bohr' has proposed that the observing apparatus plus what is observed form a single indivisible combined system not capable at the quantummechanical level of being analyzed correctly into separate and distinct parts. Each particular kind of apparatus then forms with an electron for exa ...
Any Light Particle Search - (ALPS) experiment
... To increase the sensitivity for the detection of axion-like particles, the ALPS-II collaboration plans to set up optical cavities both on the production and the regeneration side of the experiment with a power buildup of 5000 and 40000, respectively, and magnet strings of superconducting HERA dipole ...
... To increase the sensitivity for the detection of axion-like particles, the ALPS-II collaboration plans to set up optical cavities both on the production and the regeneration side of the experiment with a power buildup of 5000 and 40000, respectively, and magnet strings of superconducting HERA dipole ...