yymm_id stringlengths 8 8 | authors stringlengths 3 483 | title stringlengths 7 253 | doi stringlengths 11 70 ⌀ | categories stringlengths 8 120 | abstract stringlengths 21 1.86k | latex stringlengths 14 3.08M | request_output stringlengths 111 47.7k |
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9210.004 | James B. Hartle | The Spacetime Approach to Quantum Mechanics | 10.1016/0083-6656(93)90097-4 | gr-qc hep-th quant-ph | Feynman's sum-over-histories formulation of quantum mechanics is reviewed as
an independent statement of quantum theory in spacetime form. It is different
from the usual Schr\"odinger-Heisenberg formulation that utilizes states on
spacelike surfaces because it assigns probabilities to different sets of
alternatives. ... | %Paper: gr-qc/9210004
%From: James Hartle <hartle@cosmic.physics.ucsb.edu>
%Date: Wed, 7 Oct 92 16:38:56 -0700
%Date (revised): Wed, 7 Oct 92 16:50:56 -0700
%Date (revised): Mon, 12 Oct 92 15:13:01 -0700
%Paper: gr-qc/9210004
%From: James Hartle <hartle@cosmic.physics.ucsb.edu>
%Date: Wed, 7 Oct 92 16:38:56 -0700
%Da... | {"problem_contribution_queries": ["general covariance in quantum theory, absence of preferred time variable, conflict between diffeomorphism invariance and hamiltonian formulation, restriction of alternatives to definite moments of time, probability sum rule violations due to quantum interference, need for observer-ind... |
9210.006 | James B. Hartle | The Quantum Mechanics of Closed Systems | null | gr-qc hep-th quant-ph | A pedagogical introduction is given to the quantum mechanics of closed
systems, most generally the universe as a whole. Quantum mechanics aims at
predicting the probabilities of alternative coarse-grained time histories of a
closed system. Not every set of alternative coarse-grained histories that can
be described ma... | %\documentclass[12pt,preprint,eqsecnum,nofootinbib,showpacs,amsmath,amssymb]{revtex4}
\documentclass[10pt,aps,twocolumn,eqsecnum,nofootinbib,floatfix,amsmath,amssymb]{revtex4}
\usepackage{graphicx}
%\usepackage{amsmath}
\usepackage{dcolumn}
\usepackage{bm}
\usepackage{epsfig,psfrag,amsmath,amssymb,float}
\input{epsf}
\... | {"problem_contribution_queries": ["assignment of probabilities to alternative coarse-grained time histories, closed system quantum framework limitations, quantum interference violation of probability sum rules, neglecting external classical observer postulates, measurement-independent prediction rules, dependence on Ha... |
9210.010 | Murray Gell-Mann and James B. Hartle | Classical Equations for Quantum Systems | 10.1103/PhysRevD.47.3345 | gr-qc hep-th quant-ph | " The origin of the phenomenological deterministic laws that approximately\ngovern the quasiclassic(...TRUNCATED) | "%Paper: gr-qc/9210010\n%From: James Hartle <hartle@cosmic.physics.ucsb.edu>\n%Date: Tue, 20 Oct 92 (...TRUNCATED) | "{\"problem_contribution_queries\": [\"closed system quantum mechanics derivations, emergence of phe(...TRUNCATED) |
9301.011 | James B. Hartle | "The Reduction of the State Vector and Limitations on Measurement in the\n Quantum Mechanics of Clo(...TRUNCATED) | null | gr-qc hep-th quant-ph | " Measurement is a fundamental notion in the usual approximate quantum\nmechanics of measured subsy(...TRUNCATED) | "%Paper: gr-qc/9301011\n%From: James Hartle <hartle@cosmic.physics.ucsb.edu>\n%Date: Wed, 13 Jan 93 (...TRUNCATED) | "{\"problem_contribution_queries\": [\"closed system quantum probability assignment, bypass external(...TRUNCATED) |
9406.058 | W. G. Unruh | Maintaining coherence in Quantum Computers | 10.1103/PhysRevA.51.992 | hep-th gr-qc quant-ph | " The effect of the inevitable coupling to external degrees of freedom of a\nquantum computer are e(...TRUNCATED) | "%Paper: hep-th/9406058\n%From: Bill Unruh <unruh@physics.ubc.ca>\n%Date: 9 Jun 94 14:42 -0700\n\n\n(...TRUNCATED) | "{\"problem_contribution_queries\": [\"quantum memory register coupling to external heat bath, therm(...TRUNCATED) |
9406.116 | Daniel Rohrlich, Yakir Aharonov, Sandu Popescu, and Lev Vaidman | Negative Kinetic Energy Between Past and Future State Vectors | 10.1111/j.1749-6632.1995.tb38982.x | cond-mat quant-ph | " An analysis of errors in measurement yields new insight into classically\nforbidden quantum proce(...TRUNCATED) | "%Paper: cond-mat/9406116\n%From: Daniel Rohrlich <DANIEL@taunivm.tau.ac.il>\n%Date: Wed, 29 Jun 199(...TRUNCATED) | "{\"problem_contribution_queries\": [\"classically forbidden region dynamics, positive kinetic energ(...TRUNCATED) |
9406.398 | A.Yu.Ignatiev, G.C.Joshi and M.Matsuda | The Search for the Decay of Z Boson into Two Gammas as a Test of Bose
Statistics | 10.1142/S0217732396000874 | hep-ph quant-ph | " We suggest that Bose statistics for photons can be tested by looking for\ndecays of spin-1 bosons(...TRUNCATED) | "%Paper: hep-ph/9406398\n%From: sasha@tauon.ph.unimelb.edu.au (Alexander Ignatiev)\n%Date: Mon, 27 J(...TRUNCATED) | "{\"problem_contribution_queries\": [\"testing fundamental symmetry violations at high energy scales(...TRUNCATED) |
9407.011 | Dmitri Kouznetsov, Roberto Ortega, and Daniel Rohrlich | Quantum Noise Limits for Nonlinear, Phase-Invariant Amplifiers | 10.1103/PhysRevA.52.1665 | cond-mat quant-ph | " Any quantum device that amplifies coherent states of a field while preserving\ntheir phase genera(...TRUNCATED) | "%Paper: cond-mat/9407011\n%From: Daniel Rohrlich <DANIEL@taunivm.tau.ac.il>\n%Date: Sun, 03 Jul 94 (...TRUNCATED) | "{\"problem_contribution_queries\": [\"phase-preserving quantum amplification fundamental noise floo(...TRUNCATED) |
9407.022 | David P. Divincenzo | Two-Bit Gates are Universal for Quantum Computation | 10.1103/PhysRevA.51.1015 | cond-mat hep-lat quant-ph | " A proof is given, which relies on the commutator algebra of the unitary Lie\ngroups, that quantum(...TRUNCATED) | "%Paper: cond-mat/9407022\n%From: \"DiVincenzo, David P.\" <divince@watson.ibm.com>\n%Date: Tue, 5 J(...TRUNCATED) | "{\"problem_contribution_queries\": [\"quantum circuit synthesis limits, arbitrary unitary transform(...TRUNCATED) |
9409.037 | Fay Dowker, Adrian Kent | Properties of Consistent Histories | 10.1103/PhysRevLett.75.3038 | gr-qc hep-th quant-ph | " We describe some properties of consistent sets of histories in the\nGell-Mann--Hartle formalism, (...TRUNCATED) | "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n%THIS PAPER USES HARVMAC(...TRUNCATED) | "{\"problem_contribution_queries\": [\"finite dimensional Hilbert space evolution limits, quasiclass(...TRUNCATED) |
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