Continuity of Government: Presidential Succession

Questions about the continuity of our key institu­tions have arisen at pivotal moments through­out our nation's history. Watershed events such as the Cold War, the death of President Franklin D. Roos­evelt, and the assassination of President John F. Ken­nedy brought continuity-of-government issues into sharp public relief. Ultimately, these events led to sig­nificant reforms, including the 25th Amendment and a new Presidential Succession Act.A decade after the fall of the Soviet Union, the 9/11 attacks forced continuity issues back into the public consciousness. One result was the creation of the first Continuity of Government Commission, the predecessor to the current commission. More than two decades after 9/11, we still have to ask ourselves, Do we have the legal and constitutional framework in place to ensure that our key institutions of govern­ment could recover from a catastrophic event?America has in place legal and constitutional pro­visions that address presidential succession. These provisions serve us well in the straightforward case of a president's death while in office. However, the cur­rent system does not adequately address less straight­forward scenarios, such as a mass attack on multiple people in the line of succession, the simultaneous incapacity of the president and vice president, and unique succession issues that could arise between Election Day and Inauguration Day.In this report, the Continuity of Government Com­mission recommends several changes to the Presiden­tial Succession Act that address these vulnerabilities. These recommendations would not require constitu­tional amendments; they are achievable through sim­ple legislative changes

The Absentee Ballot and the Secret Ballot: Challenges for Election Reform

Reforms in the recently enacted federal election reform legislation primarily address improving voting at a polling place, but there is a growing share of the electorate who vote away from the polling place through increased use of absentee ballots and vote-by-mail systems. Voters who vote away from the polling place do not have the same protections as those at the polling place. In particular, these voters do not have a secret ballot, as any ballot cast without a drawn curtain behind oneself is potentially subject to coercion, vote buying and fraud. This Article looks at the tension between the Australian Ballot and absentee voting. Both the Australian Ballot and the Absentee Ballot were electoral reforms of previous generations. The Australian Ballot was instituted by almost all of the states in the 1880s and 90s to combat abuses at the ballot box such as vote buying and coercion by party machines. There were two major periods of absentee ballot reform. In both periods of absentee ballot reform, there was recognition of the dangers of casting a ballot away from a home polling place. Since these early periods of adoption of absentee voting laws, there has been a significant rise in voting away from the polling place. In addition, many of the safeguards implemented by early legislation have been repealed. There are a number of advocates for easier absentee balloting, vote by mail, or even voting over the Internet. Although they emphasize the convenience of such measures, these advocates do not seem to appreciate the privacy concerns that the originators of the absentee ballot did. 7b the extent that election reform legislation is to be successful in improving the electoral system, it must take note of the trend toward voting away from the polling place and consider the importance of the secret ballot as well as convenience

The Continuity of Congress

The Continuity of Government Commission was originally formed after 9/11 to address how our key institutions can reconstitute themselves after a catastrophic attack. A new version of the commission, including previous members and new ones, who have experience in all three branches of government, met in 2021 and 2022 to consider continuity-of-government issues in light of the recent pandemic and other developments. In this report, the commission issues its recommendations on the continuity of Congress.The core continuity problem for Congress is that if many members of the House of Representatives were killed in an attack or other catastrophe, the House would likely have no quorum and be unable to meet for months after the event. Unlike the Senate, the House can fill its vacancies only by special election, and those elections are likely to take months to conduct.The key recommendation is for a constitutional amendment to allow for temporary replacements to be appointed to fill the seats of deceased members until special elections are held to elect a permanent replacement. With immediate successors to fill the seats of deceased members of Congress, a Congress with nearly full representation could be reconstituted within days to work with the president to face the challenges of the present emergency.The commission makes several other recommendations that deal with other continuity-of-Congress issues:Creating a limited provision for allowing remote proceedings when members of Congress cannot meet in person in Washington,Allowing temporary replacement members to fill in for incapacitated members in the extreme case when deceased and incapacitated members number more than a majority of the House or Senate, andAdopting procedures to ensure that a new Congress could commence, perhaps even remotely, if a catastrophic emergency prevented the regular opening of a new Congress

Measurement of excited-state transitions in cold calcium atoms by direct femtosecond frequency-comb spectroscopy

We apply direct frequency-comb spectroscopy, in combination with precision cw spectroscopy, to measure the ${\rm 4s4p} ^3P_1 \to {\rm 4s5s} ^3S_1$ transition frequency in cold calcium atoms. A 657 nm ultrastable cw laser was used to excite atoms on the narrow ($\gamma \sim 400$ Hz) ${\rm 4s^2} ^1S_0 \to {\rm 4s4p} ^3P_1$ clock transition, and the direct output of the frequency comb was used to excite those atoms from the ${\rm 4s4p} ^3P_1$ state to the ${\rm 4s5s} ^3S_1$ state. The resonance of this second stage was detected by observing a decrease in population of the ground state as a result of atoms being optically pumped to the metastable ${\rm 4s4p} ^3P_{0,2}$ states. The ${\rm 4s4p} ^3P_1 \to {\rm 4s5s} ^3S_1$ transition frequency is measured to be $\nu = 489 544 285 713(56)$ kHz; which is an improvement by almost four orders of magnitude over the previously measured value. In addition, we demonstrate spectroscopy on magnetically trapped atoms in the ${\rm 4s4p} ^3P_2$ state.Comment: 4 pages 5 figure

Observation and absolute frequency measurements of the 1S0 - 3P0 optical clock transition in ytterbium

We report the direct excitation of the highly forbidden (6s^2) 1S0 - (6s6p) 3P0 optical transition in two odd isotopes of ytterbium. As the excitation laser frequency is scanned, absorption is detected by monitoring the depletion from an atomic cloud at ~70 uK in a magneto-optical trap. The measured frequency in 171Yb (F=1/2) is 518,295,836,593.2 +/- 4.4 kHz. The measured frequency in 173Yb (F=5/2) is 518,294,576,850.0 +/- 4.4 kHz. Measurements are made with a femtosecond-laser frequency comb calibrated by the NIST cesium fountain clock and represent nearly a million-fold reduction in uncertainty. The natural linewidth of these J=0 to J=0 transitions is calculated to be ~10 mHz, making them well-suited to support a new generation of optical atomic clocks based on confinement in an optical lattice.Comment: 4 pages, 3 figure

Kilohertz-resolution spectroscopy of cold atoms with an optical frequency comb

We have performed sub-Doppler spectroscopy on the narrow intercombination line of cold calcium atoms using the amplified output of a femtosecond laser frequency comb. Injection locking of a 657-nm diode laser with a femtosecond comb allows for two regimes of amplification, one in which many lines of the comb are amplified, and one where a single line is predominantly amplified. The output of the laser in both regimes was used to perform kilohertz-level spectroscopy. This experiment demonstrates the potential for high-resolution absolute-frequency spectroscopy over the entire spectrum of the frequency comb output using a single high-finesse optical reference cavity.Comment: 4 pages, 4 Figure

Optical Lattice Induced Light Shifts in an Yb Atomic Clock

We present an experimental study of the lattice induced light shifts on the 1S_0-3P_0 optical clock transition (v_clock~518 THz) in neutral ytterbium. The ``magic'' frequency, v_magic, for the 174Yb isotope was determined to be 394 799 475(35)MHz, which leads to a first order light shift uncertainty of 0.38 Hz on the 518 THz clock transition. Also investigated were the hyperpolarizability shifts due to the nearby 6s6p 3P_0 - 6s8p 3P_0, 6s8p 3P_2, and 6s5f 3F_2 two-photon resonances at 759.708 nm, 754.23 nm, and 764.95 nm respectively. By tuning the lattice frequency over the two-photon resonances and measuring the corresponding clock transition shifts, the hyperpolarizability shift was estimated to be 170(33) mHz for a linear polarized, 50 uK deep, lattice at the magic wavelength. In addition, we have confirmed that a circularly polarized lattice eliminates the J=0 - J=0 two-photon resonance. These results indicate that the differential polarizability and hyperpolarizability frequency shift uncertainties in a Yb lattice clock could be held to well below 10^-17.Comment: Accepted to PR

Sub-femtosecond absolute timing precision with a 10 GHz hybrid photonic-microwave oscillator

We present an optical-electronic approach to generating microwave signals with high spectral purity. By circumventing shot noise and operating near fundamental thermal limits, we demonstrate 10 GHz signals with an absolute timing jitter for a single hybrid oscillator of 420 attoseconds (1Hz - 5 GHz)

Cavity QED with optically transported atoms

Ultracold $^{87}$Rb atoms are delivered into a high-finesse optical micro-cavity using a translating optical lattice trap and detected via the cavity field. The atoms are loaded into an optical lattice from a magneto-optic trap (MOT) and transported 1.5 cm into the cavity. Our cavity satisfies the strong-coupling requirements for a single intracavity atom, thus permitting real-time observation of single atoms transported into the cavity. This transport scheme enables us to vary the number of intracavity atoms from 1 to $>$100 corresponding to a maximum atomic cooperativity parameter of 5400, the highest value ever achieved in an atom--cavity system. When many atoms are loaded into the cavity, optical bistability is directly measured in real-time cavity transmission.Comment: 4 figures, 4 page