Quantum-Secure Coin-Flipping and Applications
... By calling the coin-flip functionality sequentially a sufficient number of times, the communicating parties can interactively generate a common random string from scratch. The generation can then be integrated into other (classical or quantum) cryptographic protocols that work in the common-referenc ...
... By calling the coin-flip functionality sequentially a sufficient number of times, the communicating parties can interactively generate a common random string from scratch. The generation can then be integrated into other (classical or quantum) cryptographic protocols that work in the common-referenc ...
QUANTUM COMPUTING: AN OVERVIEW
... pi . In other words, we cannot say definitely which state the system is in. Therefore some random nature comes into the description of the system. Such a system is said to be in a mixed state while a system whose vector is uniquely specified is in a pure state. A pure state is a special case of a mixe ...
... pi . In other words, we cannot say definitely which state the system is in. Therefore some random nature comes into the description of the system. Such a system is said to be in a mixed state while a system whose vector is uniquely specified is in a pure state. A pure state is a special case of a mixe ...
Phys.Rev.Lett. 84, 1
... of the lens. The use of the lens is to achieve the “far field” condition, while still keeping a short distance between the slit and the detector D0 . Detector D0 can be scanned along its x axis by a step motor. The idler photon (photon 2) is sent to an interferometer with equal-path optical arms. Th ...
... of the lens. The use of the lens is to achieve the “far field” condition, while still keeping a short distance between the slit and the detector D0 . Detector D0 can be scanned along its x axis by a step motor. The idler photon (photon 2) is sent to an interferometer with equal-path optical arms. Th ...
chapter-11 quantum entanglement
... system composed of two separated sub-systems (1) and (2) (which initially interacted but , now, being far away, they are assumed that cannot interact), the EPR paper arrives to the following conclusions: i) two different wave functions describe the same reality, ii) quantum mechanics predict differe ...
... system composed of two separated sub-systems (1) and (2) (which initially interacted but , now, being far away, they are assumed that cannot interact), the EPR paper arrives to the following conclusions: i) two different wave functions describe the same reality, ii) quantum mechanics predict differe ...
The Learnability of Quantum States
... Now, how many times will we need to repeat this adaptive procedure before, given E1 , . . . , Er drawn as above, we can estimate (with high probability) the conditional probability that f (z1 , . . . , zr ) = 1? If we simply apply Theorem 1.1 to the tensor product of all r registers, then it is eas ...
... Now, how many times will we need to repeat this adaptive procedure before, given E1 , . . . , Er drawn as above, we can estimate (with high probability) the conditional probability that f (z1 , . . . , zr ) = 1? If we simply apply Theorem 1.1 to the tensor product of all r registers, then it is eas ...
Ideal n-body correlations with massive particles
... The experiment is performed using a novel technique (see Supplementary Information) where we produce ultra-cold clouds of 4He* in a highly anisotropic optical dipole trap, aligned with its weak axis in the direction of gravity (z-axis). A simplified schematic of the experiment is shown in Fig. 1. Th ...
... The experiment is performed using a novel technique (see Supplementary Information) where we produce ultra-cold clouds of 4He* in a highly anisotropic optical dipole trap, aligned with its weak axis in the direction of gravity (z-axis). A simplified schematic of the experiment is shown in Fig. 1. Th ...
Wigner Jenő és a „kvantum disszidensek”
... 5. The interference pattern at 5 can be calculated as a function of the path difference for the two beams. This is of course a classical experiment in optics and has, in this form, nothing to do with quantum mechanics. It becomes an experiment in quantum physics if one does this experiment with indi ...
... 5. The interference pattern at 5 can be calculated as a function of the path difference for the two beams. This is of course a classical experiment in optics and has, in this form, nothing to do with quantum mechanics. It becomes an experiment in quantum physics if one does this experiment with indi ...
CHAPTER-5 QUANTUM BEHAVIOR of PARTICLES and the
... the screen measures the local intensity I (energy per unit time per unit area) of the incident light. We would like to understand the intensity distribution I ( x) established across the screen. When one of the slits is covered, a rather simple intensity distribution (either I1 ( x) or I 2 ( x) re ...
... the screen measures the local intensity I (energy per unit time per unit area) of the incident light. We would like to understand the intensity distribution I ( x) established across the screen. When one of the slits is covered, a rather simple intensity distribution (either I1 ( x) or I 2 ( x) re ...
Phys. Rev. Lett. 100, 044106(1-4) - APS Link Manager
... The statistical theory of gases developed by Boltzmann leads to macroscopic irreversibility and entropy growth even if dynamical equations of motion are time reversible. This contradiction was pointed out by Loschmidt and is now known as the Loschmidt paradox [1]. The reply of Boltzmann relied on th ...
... The statistical theory of gases developed by Boltzmann leads to macroscopic irreversibility and entropy growth even if dynamical equations of motion are time reversible. This contradiction was pointed out by Loschmidt and is now known as the Loschmidt paradox [1]. The reply of Boltzmann relied on th ...
Quantum teleportation
Quantum teleportation is a process by which quantum information (e.g. the exact state of an atom or photon) can be transmitted (exactly, in principle) from one location to another, with the help of classical communication and previously shared quantum entanglement between the sending and receiving location. Because it depends on classical communication, which can proceed no faster than the speed of light, it cannot be used for faster-than-light transport or communication of classical bits. It also cannot be used to make copies of a system, as this violates the no-cloning theorem. While it has proven possible to teleport one or more qubits of information between two (entangled) atoms, this has not yet been achieved between molecules or anything larger.Although the name is inspired by the teleportation commonly used in fiction, there is no relationship outside the name, because quantum teleportation concerns only the transfer of information. Quantum teleportation is not a form of transportation, but of communication; it provides a way of transporting a qubit from one location to another, without having to move a physical particle along with it.The seminal paper first expounding the idea was published by C. H. Bennett, G. Brassard, C. Crépeau, R. Jozsa, A. Peres and W. K. Wootters in 1993. Since then, quantum teleportation was first realized with single photons and later demonstrated with various material systems such as atoms, ions, electrons and superconducting circuits. The record distance for quantum teleportation is 143 km (89 mi).