Zobrazeno 1 - 10
of 350
pro vyhledávání: '"Brun, Todd"'
Autor:
Avritzer, Bruno, Brun, Todd A.
In a previous work we have discussed a theoretical grounding for classical steganography using quantum Fock and coherent states in an optical channel, building on previous work by Wu et al. In that work, we discussed protocols which disguise communic
Externí odkaz:
http://arxiv.org/abs/2409.09335
Autor:
Gerhard, Christopher, Brun, Todd A.
Many current quantum error correcting codes that achieve full fault-tolerance suffer from having low ratios of logical to physical qubits and significant overhead. This makes them difficult to implement on current noisy intermediate-scale quantum (NI
Externí odkaz:
http://arxiv.org/abs/2408.14828
Quantum steganography is a powerful method for information security where communications between a sender and receiver are disguised as naturally occurring noise in a channel. We encoded the phase and amplitude of weak coherent laser states such that
Externí odkaz:
http://arxiv.org/abs/2405.03881
Autor:
Lanka, Anirudh, Brun, Todd
Publikováno v:
Phys. Rev. A 108, 053711 (2023)
We propose a technique to improve the probability of single-photon emission with an electrically pumped quantum dot in an optical microcavity, by continuously monitoring the energy state of the dot and using feedback to control when to stop pumping.
Externí odkaz:
http://arxiv.org/abs/2306.05676
Autor:
Avritzer, Bruno, Brun, Todd
Publikováno v:
Physical Review A 109, 032401 (2024)
Steganography is an alternative to cryptography, where information is protected by secrecy -- being disguised as innocent communication or noise -- rather than being scrambled. In this work we develop schemes for steganographic communication using Fo
Externí odkaz:
http://arxiv.org/abs/2303.02307
Autor:
Prabhu, Prithviraj, Brun, Todd A.
Publikováno v:
Phys. Rev. A 105, 032206 (2022)
Classical random walks on finite graphs have an underrated property: a walk from any vertex can reach every other vertex in finite time, provided they are connected. Discrete-time quantum walks on finite connected graphs however, can have infinite hi
Externí odkaz:
http://arxiv.org/abs/2107.02383
Autor:
Mlodinow, Leonard, Brun, Todd A.
Publikováno v:
Phys. Rev. A 103, 052203 (2021)
Quantum walks on lattices can give rise to relativistic wave equations in the long-wavelength limit, but going beyond the single-particle case has proven challenging, especially in more than one spatial dimension. We construct quantum cellular automa
Externí odkaz:
http://arxiv.org/abs/2011.05597
Autor:
Aiello, Clarice D., Awschalom, D. D., Bernien, Hannes, Brower-Thomas, Tina, Brown, Kenneth R., Brun, Todd A., Caram, Justin R., Chitambar, Eric, Di Felice, Rosa, Fox, Michael F. J., Haas, Stephan, Holleitner, Alexander W., Hudson, Eric R., Hunt, Jeffrey H., Joynt, Robert, Koziol, Scott, Lewandowski, H. J., McClure, Douglas T., Palsberg, Jens, Passante, Gina, Pudenz, Kristen L., Richardson, Christopher J. K., Rosenberg, Jessica L., Ross, R. S., Saffman, Mark, Singh, M., Steuerman, David W., Stark, Chad, Thijssen, Jos, Vamivakas, A. Nick, Whitfield, James D., Zwickl, Benjamin M.
Publikováno v:
Quantum Sci. Technol. 6 030501 (2021)
Interest in building dedicated Quantum Information Science and Engineering (QISE) education programs has greatly expanded in recent years. These programs are inherently convergent, complex, often resource intensive and likely require collaboration wi
Externí odkaz:
http://arxiv.org/abs/2010.13778
Autor:
Brun, Todd A., Mlodinow, Leonard
Publikováno v:
Phys. Rev. A 102, 062222 (2020)
Quantum walks on lattices can give rise to one-particle relativistic wave equations in the long-wavelength limit. In going to multiple particles, quantum cellular automata (QCA) are natural generalizations of quantum walks. In one spatial dimension,
Externí odkaz:
http://arxiv.org/abs/2010.09104
Autor:
Mlodinow, Leonard, Brun, Todd A.
Publikováno v:
Phys. Rev. A 102, 042211 (2020)
It has been shown that certain quantum walks give rise to relativistic wave equations, such as the Dirac and Weyl equations, in their long-wavelength limits. This intriguing result raises the question of whether something similar can happen in the mu
Externí odkaz:
http://arxiv.org/abs/2006.08927