Spin Group of Prof. Justin Dressel
Spin Group of Prof. Justin Dressel
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Out-of-Time-Ordered-Correlator Quasiprobabilities Robustly Witness Scrambling
José Raúl González Alonso
,
Nicole Yunger Halpern
,
Justin Dressel
Physical Review Letters
122
, 040404(2019).
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arXiv
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Out-of-time-ordered correlators (OTOCs) have received considerable recent attention as qualitative witnesses of information scrambling …
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Weak values from strong interactions in neutron interferometry
Tobias Denkmayr
,
Justin Dressel
,
Hermann Geppert-Kleinrath
,
Yuji Hasegawa
,
Stephan Sponar
Physica B: Condensed Matter
551
, 339-346(2018).
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In their original framework weak values must be measured by weak measurements that are minimally disturbing, meaning that the coupling …
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Strengthening weak measurements of qubit out-of-time-order correlators
Justin Dressel
,
José Raúl González Alonso
,
Mordecai Waegell
,
Nicole Yunger Halpern
Physical Review A
98
, 012132(2018).
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arXiv
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For systems of controllable qubits, we provide a method for experimentally obtaining a useful class of multitime correlators using …
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Quasiprobability behind the out-of-time-ordered correlator
Nicole Yunger Halpern
,
Brian Swingle
,
Justin Dressel
Physical Review A
97
, 042105(2018).
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arXiv
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Two topics, evolving rapidly in separate fields, were combined recently: the out-of-time-ordered correlator (OTOC) signals …
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arXiv
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Incoherent Qubit Control Using the Quantum Zeno Effect
Shay Hacohen-Gourgy
,
Luis Pedro Garcı́a-Pintos
,
Leigh S Martin
,
Justin Dressel
,
Irfan Siddiqi
Physical Review Letters
120
, 020505(2018).
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arXiv
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The quantum Zeno effect is the suppression of Hamiltonian evolution by repeated observation, which pins the system to an eigenstate of …
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Arrow of Time for Continuous Quantum Measurement
Justin Dressel
,
Areeya Chantasri
,
Andrew N. Jordan
,
Alexander N Korotkov
Physical Review Letters
119
, 220507(2017).
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arXiv
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We investigate the statistical arrow of time for a quantum system being monitored by a sequence of measurements. For a continuous qubit …
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Past observable dynamics of a continuously monitored qubit
Luis Pedro Garcı́a-Pintos
,
Justin Dressel
Physical Review A
96
, 062110(2017).
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arXiv
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Monitoring a quantum observable continuously in time produces a stochastic measurement record that noisily tracks the observable. For a …
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Linear feedback stabilization of a dispersively monitored qubit
Taylor Lee Patti
,
Areeya Chantasri
,
Luis Pedro Garcı́a-Pintos
,
Andrew N. Jordan
,
Justin Dressel
Physical Review A
96
, 022311(2017).
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arXiv
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The state of a continuously monitored qubit evolves stochastically, exhibiting competition between coherent Hamiltonian dynamics and …
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Janus sequences of quantum measurements and the arrow of time
Andrew N. Jordan
,
Areeya Chantasri
,
Kater Murch
,
Justin Dressel
,
Alexander N Korotkov
AIP Conference Proceedings
1841
, 020003(2017).
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We examine the time reversal symmetry of quantum measurement sequences by introducing a forward and backward Janus sequence of …
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Experimental Demonstration of Direct Path State Characterization by Strongly Measuring Weak Values in a Matter-Wave Interferometer
Tobias Denkmayr
,
Hermann Geppert
,
Hartmut Lemmel
,
Mordecai Waegell
,
Justin Dressel
,
Yuji Hasegawa
,
Stephan Sponar
Physical Review Letters
118
, 010402(2017).
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arXiv
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A novel method was recently proposed and experimentally realized for characterizing a quantum state by directly measuring its complex …
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arXiv
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