What classicality? Decoherence and Bohr`s classical concepts
... eigenstate of a classical observables with a discrete spectrum would be the most classical quantum state: the system then possesses a well-defined, sharp value of a classical physical quantity. Many classical observables, on the other hand, have a continuous spectrum. Position and momentum are textb ...
... eigenstate of a classical observables with a discrete spectrum would be the most classical quantum state: the system then possesses a well-defined, sharp value of a classical physical quantity. Many classical observables, on the other hand, have a continuous spectrum. Position and momentum are textb ...
High-Performance Computing and Quantum Processing - HPC-UA
... The channel capacity C is found by maximizing the mutual information subject to the input probabilities, and ...
... The channel capacity C is found by maximizing the mutual information subject to the input probabilities, and ...
The Quantum World
... Chapter 7 we shall find that there is in quantum theory a radical inability to pin things down which goes beyond the simple considerations outlined here. The second perplexity relates to the act of measurement. It is notorious that there is an inescapable random element in quantum mechanical measure ...
... Chapter 7 we shall find that there is in quantum theory a radical inability to pin things down which goes beyond the simple considerations outlined here. The second perplexity relates to the act of measurement. It is notorious that there is an inescapable random element in quantum mechanical measure ...
Black hole fireworks: quantum-gravity effects outside the horizon
... Hájček and Kiefer [15] have studied the dynamics of a null spherical shell coupled to gravity. The classical theory has two disconnected sets of solutions: those with the shell in-falling into a black hole, and those with the shell emerging from a white hole. The system is described by two variabl ...
... Hájček and Kiefer [15] have studied the dynamics of a null spherical shell coupled to gravity. The classical theory has two disconnected sets of solutions: those with the shell in-falling into a black hole, and those with the shell emerging from a white hole. The system is described by two variabl ...
Universal control of an oscillator with dispersive coupling to a qubit
... To calibrate such deviations, we simulate the full evolution of the gate from Eq. (10) based on a numerical integration of the original time-dependent Hamiltonian [Eq. (1)], and calculate the infidelity with respect to the target unitary [32], as illustrated in Fig. 5. We use realistic parameters fro ...
... To calibrate such deviations, we simulate the full evolution of the gate from Eq. (10) based on a numerical integration of the original time-dependent Hamiltonian [Eq. (1)], and calculate the infidelity with respect to the target unitary [32], as illustrated in Fig. 5. We use realistic parameters fro ...
Approximate Quantum Error-Correcting Codes and Secret Sharing
... from ours in one of two ways: they assume either that the errors occur at random or that the code is randomly agreed on by the coder and the decoder but is kept secret from the adversarial noise source. This model does not seem suitable in cryptographic applications such as VQSS and MPQC [9]. In our ...
... from ours in one of two ways: they assume either that the errors occur at random or that the code is randomly agreed on by the coder and the decoder but is kept secret from the adversarial noise source. This model does not seem suitable in cryptographic applications such as VQSS and MPQC [9]. In our ...
Five Lecture Course on Basic Physics of
... Cooper pairs. It does not contain contributions from states with an odd number of electrons. What happens if we force one more electron into a superconductor? The BCS state would not be the ground state of such a system. What will it be? The only option is to put the extra electron into a quasiparti ...
... Cooper pairs. It does not contain contributions from states with an odd number of electrons. What happens if we force one more electron into a superconductor? The BCS state would not be the ground state of such a system. What will it be? The only option is to put the extra electron into a quasiparti ...
Quantum Mechanical Laws
... Quantum Mechanics (QM) was one of the greatest revolutions in physics. Although it did not abolish but rather extended the former classical laws, the generalization was achieved at the cost of adopting a completely new language of concepts and a new way of thinking at phenomenological and mathematic ...
... Quantum Mechanics (QM) was one of the greatest revolutions in physics. Although it did not abolish but rather extended the former classical laws, the generalization was achieved at the cost of adopting a completely new language of concepts and a new way of thinking at phenomenological and mathematic ...
Do quantum strategies always win?
... addition to game theory has come into being. This is the story of Quantum games. It studies how to quantize the previously played classical games or propose new games which explicitly use quantum mechanical phenomena like entanglement, nonlocality and quantum interference. Further, in contradistinct ...
... addition to game theory has come into being. This is the story of Quantum games. It studies how to quantize the previously played classical games or propose new games which explicitly use quantum mechanical phenomena like entanglement, nonlocality and quantum interference. Further, in contradistinct ...
One-way quantum computing with arbitrarily large time
... into the diagonal and antidiagonal qumode decomposition (equivalently, a 50:50 beamsplitter between the two qumodes). Input states at a particular time step will either be the output state from the previous time step or new states directly injected into the BSL via an optical switch [17]. They are l ...
... into the diagonal and antidiagonal qumode decomposition (equivalently, a 50:50 beamsplitter between the two qumodes). Input states at a particular time step will either be the output state from the previous time step or new states directly injected into the BSL via an optical switch [17]. They are l ...
Rapid readout of a register of qubits using open loop... Joshua Combes , Aaron Denney , and Howard M. Wiseman
... control commutes with the measured observable at all times, our rapid measurement protocol could be used for characterising a quantum system, by state or process tomography, or to implement measurement-based quantum error correction. PACS numbers: 03.65.Yz,3.65.Wj,42.50.Lc,02.30.Yy ...
... control commutes with the measured observable at all times, our rapid measurement protocol could be used for characterising a quantum system, by state or process tomography, or to implement measurement-based quantum error correction. PACS numbers: 03.65.Yz,3.65.Wj,42.50.Lc,02.30.Yy ...
