Irreversibility and the Arrow of Time in a Quenched
... We experimentally verify the arrow of time expressed by Eq. (1) by determining both sides of the equation independently. We first evaluate the Kullback-Leibler relative entropy between forward and backward dynamics by tracking the state of the spin 1=2 at any time t with the help of quantum state to ...
... We experimentally verify the arrow of time expressed by Eq. (1) by determining both sides of the equation independently. We first evaluate the Kullback-Leibler relative entropy between forward and backward dynamics by tracking the state of the spin 1=2 at any time t with the help of quantum state to ...
Quantum Chaos and Quantum Computers
... e¤cient than the existing computers today [2]. In addition to the above internal imperfections there is also decoherence due to coupling to the external world which produces noise and dissipation. The e¡ects of decoherence and two-qubit gates pulse broadening were numerically tested on Shor's algori ...
... e¤cient than the existing computers today [2]. In addition to the above internal imperfections there is also decoherence due to coupling to the external world which produces noise and dissipation. The e¡ects of decoherence and two-qubit gates pulse broadening were numerically tested on Shor's algori ...
Slide 1
... Dynamic quark models of hadrons composed of quasifree colored quarks a) Hadron form factors The introduction of colored quarks, representing physical fundamental particles, paved the way for the dynamic description of hadrons. The main obstacle, here, was the absence of quarks in a free state. Alth ...
... Dynamic quark models of hadrons composed of quasifree colored quarks a) Hadron form factors The introduction of colored quarks, representing physical fundamental particles, paved the way for the dynamic description of hadrons. The main obstacle, here, was the absence of quarks in a free state. Alth ...
Square Root of “Not”
... real α), we get the same outcome probabilities. • In quantum mechanics, states s and ei·α ·s are therefore considered the same physical state. ...
... real α), we get the same outcome probabilities. • In quantum mechanics, states s and ei·α ·s are therefore considered the same physical state. ...
Inhomogeneous boundary effects in semiconductor quantum wires
... We now study the randomly-fluctuating boundary case, where we assume the maximum fluctuating amplitude V, of V,(z) is much less than the characteristic energy of the confinement potential. In this case, equation (5) effectively represents an electron in a one-dimensional random potential. The differ ...
... We now study the randomly-fluctuating boundary case, where we assume the maximum fluctuating amplitude V, of V,(z) is much less than the characteristic energy of the confinement potential. In this case, equation (5) effectively represents an electron in a one-dimensional random potential. The differ ...
Optical and Quantum Communications—J. H. Shapiro, N. C. Wong
... enable the quantum-mechanical information transmission, storage, and processing needed for future applications in quantum computing and quantum communication. Our theoretical work in this area has focused on architectural designs for long-distance teleportation and multi-party entanglement transmiss ...
... enable the quantum-mechanical information transmission, storage, and processing needed for future applications in quantum computing and quantum communication. Our theoretical work in this area has focused on architectural designs for long-distance teleportation and multi-party entanglement transmiss ...
Bohr Theory in the Atomic Physics
... atom, he still regarded the electron as one classical particle, and continued to use the coordinate, speed, orbit and other concepts which were used to describe the macro phenomena in the classical mechanics. And it can not explain why the Coulomb interaction between the electron and nucleus in the ...
... atom, he still regarded the electron as one classical particle, and continued to use the coordinate, speed, orbit and other concepts which were used to describe the macro phenomena in the classical mechanics. And it can not explain why the Coulomb interaction between the electron and nucleus in the ...
Lecture 6
... Principle of implicit measurement: Without loss of generality, any unterminated quantum wires (qubits which are not yet measured) at the end of the quantum circuit may be assumed to be measured. In order for a measurement to be reversible, it must reveal no information about the quantum system being ...
... Principle of implicit measurement: Without loss of generality, any unterminated quantum wires (qubits which are not yet measured) at the end of the quantum circuit may be assumed to be measured. In order for a measurement to be reversible, it must reveal no information about the quantum system being ...
Realization of a Knill-Laflamme-Milburn controlled
... atoms, nuclear spins, quantum dots, superconductor and photons— while photons are indispensable for quantum communication [2, 3] and are particularly promising for quantum metrology [4, 5]. In addition to low-noise quantum systems (typically two-level ‘qubits’) quantum information protocols require ...
... atoms, nuclear spins, quantum dots, superconductor and photons— while photons are indispensable for quantum communication [2, 3] and are particularly promising for quantum metrology [4, 5]. In addition to low-noise quantum systems (typically two-level ‘qubits’) quantum information protocols require ...
A Review and Prospects of Quantum Teleportation
... understand the concept of quantum entanglement/ teleportation, we will focus on the quantum wave function (a.k.a. quantum state function). Any quantum system such as a particle that possesses a position in space, energy, angular and linear momentum, and spin is completely described by a wave functio ...
... understand the concept of quantum entanglement/ teleportation, we will focus on the quantum wave function (a.k.a. quantum state function). Any quantum system such as a particle that possesses a position in space, energy, angular and linear momentum, and spin is completely described by a wave functio ...
Quantum information processing by nuclear magnetic resonance
... completely random. Such a system might well be able to process information, but it seemed one would have little control over what information! This problem was circumvented by taking advantage of the very ensemble nature of the system which gave rise to it in the first place. Namely, we define a ‘‘ ...
... completely random. Such a system might well be able to process information, but it seemed one would have little control over what information! This problem was circumvented by taking advantage of the very ensemble nature of the system which gave rise to it in the first place. Namely, we define a ‘‘ ...
Some trends in the philosophy of physics - Philsci
... from scratch – can be associated with Bohr’s interpretation of quantum mechanics. The idea is that the apparatus should somehow be described by classical, not quantum, physics, and therefore the apparatus and its pointer should not be thought of as being in superpositions.13 I shall come back to Boh ...
... from scratch – can be associated with Bohr’s interpretation of quantum mechanics. The idea is that the apparatus should somehow be described by classical, not quantum, physics, and therefore the apparatus and its pointer should not be thought of as being in superpositions.13 I shall come back to Boh ...
A New Form of Matter (pdf, 217 kB)
... Technology) and Carl Wieman (University of Colorado) also created BECs; theirs were made of super-cold rubidium atoms. Cornell and Wieman shared the 2001 Nobel Prize with Ketterle "for the achievement of Bose-Einstein condensation in dilute gases of alkali atoms, and for early fundamental studies of ...
... Technology) and Carl Wieman (University of Colorado) also created BECs; theirs were made of super-cold rubidium atoms. Cornell and Wieman shared the 2001 Nobel Prize with Ketterle "for the achievement of Bose-Einstein condensation in dilute gases of alkali atoms, and for early fundamental studies of ...
