Interaction-induced Lipkin-Meshkov-Glick model in a Bose
... collective spin system with long-rang interactions. By changing the effective magnetic field, this model has a rich phase diagram in both ground- and excited- states, independent of the systemsize [6, 7, 8, 9, 10, 11]. In quantum information it can be used to test the fundamental relation between ma ...
... collective spin system with long-rang interactions. By changing the effective magnetic field, this model has a rich phase diagram in both ground- and excited- states, independent of the systemsize [6, 7, 8, 9, 10, 11]. In quantum information it can be used to test the fundamental relation between ma ...
PDF - JMLR Workshop and Conference Proceedings
... approaches beginning with Expectation-Maximization (EM). EM is an extremely natural approach to this problem as a POMDP is essentially a controlled Hidden Markov Model (HMM) and EM is one of the best studied approaches to learning in HMMs (Rabiner, 1989). However, the tendency of EM to get trapped i ...
... approaches beginning with Expectation-Maximization (EM). EM is an extremely natural approach to this problem as a POMDP is essentially a controlled Hidden Markov Model (HMM) and EM is one of the best studied approaches to learning in HMMs (Rabiner, 1989). However, the tendency of EM to get trapped i ...
PPt fileDavid Tannor
... Control by decoherence: weak field control of an excited state objective Gil Katz1 , Mark A Ratner2 and Ronnie Kosloff3 Coherent control employing a broadband excitation is applied to a branching reaction in the excited state. In a weak field for an isolated molecule, a control objective is only fre ...
... Control by decoherence: weak field control of an excited state objective Gil Katz1 , Mark A Ratner2 and Ronnie Kosloff3 Coherent control employing a broadband excitation is applied to a branching reaction in the excited state. In a weak field for an isolated molecule, a control objective is only fre ...
... the investigation of single trapped ions has contributed significantly to our understanding of the quantum mechanical behaviour of small numbers of particles. In particular, universal quantum computing algorithms have been demonstrated with trapped ions, thereby transforming the peculiar features of ...
Exceptional Points and Dynamical Phase Transitions
... In this case, the two values ς = ± i give the same eigenvalue 0. According to Kato, not only the number of eigenvalues but also the number of eigenfunctions is reduced at the exceptional point. Operators of the type (2) appear in the description of physical systems, for example in the theory of open ...
... In this case, the two values ς = ± i give the same eigenvalue 0. According to Kato, not only the number of eigenvalues but also the number of eigenfunctions is reduced at the exceptional point. Operators of the type (2) appear in the description of physical systems, for example in the theory of open ...
Quantum Wires and Quantum Point Contacts
... Structure of spinless edge states in the QHE regime. (a)-(c) One-electron picture of edge states. (a) Top view on the 2DEG plane near the edge. (b) Adiabatic bending of Landau levels along the increasing potential energy near the edge. (c) Electron density as a function of the distance to the bounda ...
... Structure of spinless edge states in the QHE regime. (a)-(c) One-electron picture of edge states. (a) Top view on the 2DEG plane near the edge. (b) Adiabatic bending of Landau levels along the increasing potential energy near the edge. (c) Electron density as a function of the distance to the bounda ...
QUANTUM ERROR CORRECTING CODES FROM THE
... landscape of general strategies to find codes for other classes of channels is fairly sparse. In particular, the theory lacks a systematic method that applies to arbitrary quantum channels. Indeed, after spending any time at all on this problem, it becomes clear that this is an extremely daunting ch ...
... landscape of general strategies to find codes for other classes of channels is fairly sparse. In particular, the theory lacks a systematic method that applies to arbitrary quantum channels. Indeed, after spending any time at all on this problem, it becomes clear that this is an extremely daunting ch ...
Could Inelastic Interactions Induce Quantum Probabilistic Transitions?
... the intelligibility of the quantum domain is concerned. The quantum domain would have been incomprehensible indeed if composed of classical, deterministic particles or waves. That it is not composed of such entities is very encouraging from the standpoint of the quantum domain being thoroughly intel ...
... the intelligibility of the quantum domain is concerned. The quantum domain would have been incomprehensible indeed if composed of classical, deterministic particles or waves. That it is not composed of such entities is very encouraging from the standpoint of the quantum domain being thoroughly intel ...
Moksha – a Critique Raja Ramanna. Lecture delivered at the
... in India on Utopia over the centuries. The dictionary meaning of Utopia is that it is an “imaginary place with perfect social and political order, an ideally perfect place or state of things”. Moksha in Sanskrit means “deliverance, emancipation or salvation”. It has now evolved to mean “attainment o ...
... in India on Utopia over the centuries. The dictionary meaning of Utopia is that it is an “imaginary place with perfect social and political order, an ideally perfect place or state of things”. Moksha in Sanskrit means “deliverance, emancipation or salvation”. It has now evolved to mean “attainment o ...
Chapter 4 - Teacher Notes
... space around an atomic nucleus. • It followed that the electron waves could exist only at specific frequencies. • According to the relationship E = hv, these frequencies corresponded to specific energies—the quantized energies of Bohr’s orbits. ...
... space around an atomic nucleus. • It followed that the electron waves could exist only at specific frequencies. • According to the relationship E = hv, these frequencies corresponded to specific energies—the quantized energies of Bohr’s orbits. ...
INTRODUCTION TO QUANTUM SUPERCONDUCTING CIRCUITS
... + Kirchhoff equations for circuits are equivalent to Maxwell's equation Define flux and charge for one element Flux and charge are conjugate variables How do we understand it? 2 choices flux is position, charge is position Connections between elements Example of harmonic oscillator Always in the cor ...
... + Kirchhoff equations for circuits are equivalent to Maxwell's equation Define flux and charge for one element Flux and charge are conjugate variables How do we understand it? 2 choices flux is position, charge is position Connections between elements Example of harmonic oscillator Always in the cor ...
Revealing novel quantum phases in quantum antiferromagnets on
... are generally doomed to failure at quantum critical points; renormalization group schemes, while generally successful for the study of critical points in clean systems, prove to be particularly hard for critical points in presence of disorder [17]. A third way is provided by numerically exact method ...
... are generally doomed to failure at quantum critical points; renormalization group schemes, while generally successful for the study of critical points in clean systems, prove to be particularly hard for critical points in presence of disorder [17]. A third way is provided by numerically exact method ...
Diverging equilibration times in long
... linear combinations of y components of Pauli spin operators would not have altered any of the conclusions. Linear combinations of z components, however, commute with the Hamiltonian (2) and are therefore conserved quantities which do not equilibrate. The results in [15] indicate that even further ge ...
... linear combinations of y components of Pauli spin operators would not have altered any of the conclusions. Linear combinations of z components, however, commute with the Hamiltonian (2) and are therefore conserved quantities which do not equilibrate. The results in [15] indicate that even further ge ...
Achieving the ultimate optical resolution
... Let us first set the stage for our simplified model. We follow Lord Rayleigh’s lead and assume quasimonochromatic paraxial waves with one specified polarization and one spatial dimension, x denoting the image-plane coordinate. To facilitate possible generalizations, we phrase what follows in a quant ...
... Let us first set the stage for our simplified model. We follow Lord Rayleigh’s lead and assume quasimonochromatic paraxial waves with one specified polarization and one spatial dimension, x denoting the image-plane coordinate. To facilitate possible generalizations, we phrase what follows in a quant ...
271, 31 (2000) .
... have been obtained in Refs. w14,15,20x. In this Letter we consider deterministic clone for a set of n pure states c i :,i s 1,2, . . . ,n4 . When c i : are non-orthogonal, they cannot be cloned perfectly. What we require is that the final states should be most similar as the target states, that is ...
... have been obtained in Refs. w14,15,20x. In this Letter we consider deterministic clone for a set of n pure states c i :,i s 1,2, . . . ,n4 . When c i : are non-orthogonal, they cannot be cloned perfectly. What we require is that the final states should be most similar as the target states, that is ...
